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Sinjini IyerEduRev Class 10 |
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Sinjini Iyer
EduRev Class 10
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Top Scoring Tests by Sinjini
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Discussed Questions
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Sinjini Iyer upvoted • Feb 21, 2025 |
Match the following:
- a)A - (ii), B - (iii), C - (iv) and D - (i)
- b)A - (iv), B - (i), C - (iii) and D - (ii)
- c)A - (iv), B - (i), C - (ii) and D - (iii)
- d)A - (iv), B - (iii), C - (ii) and D - (i)
Correct answer is option 'C'. Can you explain this answer?
Match the following:
a)
A - (ii), B - (iii), C - (iv) and D - (i)
b)
A - (iv), B - (i), C - (iii) and D - (ii)
c)
A - (iv), B - (i), C - (ii) and D - (iii)
d)
A - (iv), B - (iii), C - (ii) and D - (i)
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Subset Academy answered |
1. Union territory is an area which is run by the central government directly.
2. Local Self is a decision making body for the entire village.
3. Coalition is an alliance of more than two parties.
4. Zila parishad is the representative government at district levels.
लेखिका की माँ उनके लिए कभी आदर्श नहीं
सकीं-
कथन के लिए उचित विकल्प का चयन कीजिए-
1. लेखिका की माँ पिता की ज्यादती सहती
थीं
2.
लेखिका के विचार उनकी माँ से नहीं मिलते
3. लेखिका की माँ स्वयं को... more
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Sinjini Iyer answered • Feb 07, 2025 |
लेखिका की माँ का आदर्श न होना
लेखिका की माँ उनके लिए आदर्श नहीं बन सकीं, जिसके पीछे कई कारण हो सकते हैं। यहाँ पर दिए गए विकल्पों में से कुछ महत्वपूर्ण बिंदुओं का विश्लेषण किया गया है:
1. लेखिका की माँ पिता की ज्यादती सहती थीं
- यह बात दर्शाती है कि लेखिका की माँ अपने पति द्वारा किए गए अत्याचारों का सामना करती थीं।
- इस स्थिति ने उनके व्यक्तित्व और निर्णय लेने की क... more
लेखिका की माँ उनके लिए आदर्श नहीं बन सकीं, जिसके पीछे कई कारण हो सकते हैं। यहाँ पर दिए गए विकल्पों में से कुछ महत्वपूर्ण बिंदुओं का विश्लेषण किया गया है:
1. लेखिका की माँ पिता की ज्यादती सहती थीं
- यह बात दर्शाती है कि लेखिका की माँ अपने पति द्वारा किए गए अत्याचारों का सामना करती थीं।
- इस स्थिति ने उनके व्यक्तित्व और निर्णय लेने की क... more
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Sinjini Iyer upvoted • Jan 29, 2025 |
Which out of the following is a mineral-based industry- a)sugar
- b)Tea
- c)coffee
- d)Petrochemical
Correct answer is option 'D'. Can you explain this answer?
Which out of the following is a mineral-based industry
a)
sugar
b)
Tea
c)
coffee
d)
Petrochemical
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Kamna Science Academy answered |
Mineral-based Industry:
- A mineral-based industry is an industry that is involved in the extraction and processing of minerals.
- It utilizes minerals as raw materials for manufacturing various products.
Options:
A: Sugar
- Sugar is not a mineral-based industry.
- It is produced from sugarcane or sugar beets, which are agricultural products.
B: Tea... more
- A mineral-based industry is an industry that is involved in the extraction and processing of minerals.
- It utilizes minerals as raw materials for manufacturing various products.
Options:
A: Sugar
- Sugar is not a mineral-based industry.
- It is produced from sugarcane or sugar beets, which are agricultural products.
B: Tea... more
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Sinjini Iyer upvoted • Jan 12, 2025 |
In Fig. 8.4, the pair of tangents AP and AQ drawn from an external point A to a circle with centre O are perpendicular to each other and length of each tangent is 5 cm. Then radius of the circle is
- a)10 cm
- b)7.5 cm
- c)5 cm
- d)2.5 cm
Correct answer is option 'C'. Can you explain this answer?
In Fig. 8.4, the pair of tangents AP and AQ drawn from an external point A to a circle with centre O are perpendicular to each other and length of each tangent is 5 cm. Then radius of the circle is
a)
10 cm
b)
7.5 cm
c)
5 cm
d)
2.5 cm
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Zachary Foster answered |
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Sinjini Iyer upvoted • Jan 05, 2025 |
The 6th term from the end of the AP: 5, 2, -1 , -4 , . . . , -31 is
- a)-16
- b)-19
- c)-22
- d)-25
Correct answer is option 'A'. Can you explain this answer?
The 6th term from the end of the AP: 5, 2, -1 , -4 , . . . , -31 is
a)
-16
b)
-19
c)
-22
d)
-25
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Let's Tute answered |
The given AP is 5, 2, -1, -4 ... ...., -31
d = 2 - 5 = -3, so d for the AP starting from the last term is 3.
The first term = l = -31
We know, an = a+(n−1)d
a6 from the end = −31+(5)3
a6 from the end = −16
d = 2 - 5 = -3, so d for the AP starting from the last term is 3.
The first term = l = -31
We know, an = a+(n−1)d
a6 from the end = −31+(5)3
a6 from the end = −16
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Sinjini Iyer upvoted • Jan 01, 2025 |
If the altitude of the sun is 60°, the height of a tower which casts a shadow of length 90m is- a)60m
- b)90m
- c)60√3m
- d)90√3m
Correct answer is option 'D'. Can you explain this answer?
If the altitude of the sun is 60°, the height of a tower which casts a shadow of length 90m is
a)
60m
b)
90m
c)
60√3m
d)
90√3m
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Kamna Science Academy answered |
We are given:
- Angle of elevation (θ) = 60 degree
- Shadow length (L) = 90 m
- Height of the tower (h) needs to be calculated.
The relationship between the height of the tower (h) and the shadow length (L) is given by:
Study the given cross showing self pollination in F1 and answer the questionsRRYY × rryy Parents(Round Yellow) (Wrinkled Green)RrYy × ________ F1 generation(Round Yellow)Q. The ratio of the combination of characters in the F2 progeny is:- a)3:1
- b)1:2:1
- c)1:1:1
- d)9:3:3:1
Correct answer is option 'D'. Can you explain this answer?
Study the given cross showing self pollination in F1 and answer the questions
RRYY × rryy Parents
(Round Yellow) (Wrinkled Green)
RrYy × ________ F1 generation
(Round Yellow)
Q. The ratio of the combination of characters in the F2 progeny is:
a)
3:1
b)
1:2:1
c)
1:1:1
d)
9:3:3:1
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Sinjini Iyer answered • Nov 16, 2024 |
Understanding the Cross: RRYY × rryy
In this genetic cross, we start with two parent plants:
- RRYY (Round Yellow)
- rryy (Wrinkled Green)
The traits are represented by the alleles:
- R = Round seed shape (dominant)
- r = Wrinkled seed shape (recessive)
- Y = Yellow seed color (dominant)
- y = Green seed color (recessive)
F1 Gen... more
When we cross these parents, the F1 generation consists of all heterozygous individuals:
- RrYy (Round Yellow)
All F1 plants display the dominant traits of round shape and yellow color.
F2 Generation
When F1 plants self-pollinate (RrYy × RrYy), we can determine the F2 generation's trait ratios using the Punnett square method.
Creating the Punnett Square
We will consider the gametes produced by the F1 plants:
- Gametes from RrYy: RY, Ry, rY, ry
When we set up a 4x4 Punnett square, we get the following combinations for the F2 generation:
1. RRYY (Round Yellow)
2. RRYy (Round Yellow)
3. RrYY (Round Yellow)
4. RrYy (Round Yellow)
5. Rryy (Round Green)
6. rrYY (Wrinkled Yellow)
7. rrYy (Wrinkled Yellow)
8. rryy (Wrinkled Green)
Phenotypic Ratio
The resulting phenotypic ratio from the F2 generation is:
- 9 Round Yellow
- 3 Round Green
- 3 Wrinkled Yellow
- 1 Wrinkled Green
Thus, the ratio of the combinations of characters in the F2 progeny is:
9:3:3:1
This confirms that the correct answer is option 'D'.
In this genetic cross, we start with two parent plants:
- RRYY (Round Yellow)
- rryy (Wrinkled Green)
The traits are represented by the alleles:
- R = Round seed shape (dominant)
- r = Wrinkled seed shape (recessive)
- Y = Yellow seed color (dominant)
- y = Green seed color (recessive)
F1 Gen... more
When we cross these parents, the F1 generation consists of all heterozygous individuals:
- RrYy (Round Yellow)
All F1 plants display the dominant traits of round shape and yellow color.
F2 Generation
When F1 plants self-pollinate (RrYy × RrYy), we can determine the F2 generation's trait ratios using the Punnett square method.
Creating the Punnett Square
We will consider the gametes produced by the F1 plants:
- Gametes from RrYy: RY, Ry, rY, ry
When we set up a 4x4 Punnett square, we get the following combinations for the F2 generation:
1. RRYY (Round Yellow)
2. RRYy (Round Yellow)
3. RrYY (Round Yellow)
4. RrYy (Round Yellow)
5. Rryy (Round Green)
6. rrYY (Wrinkled Yellow)
7. rrYy (Wrinkled Yellow)
8. rryy (Wrinkled Green)
Phenotypic Ratio
The resulting phenotypic ratio from the F2 generation is:
- 9 Round Yellow
- 3 Round Green
- 3 Wrinkled Yellow
- 1 Wrinkled Green
Thus, the ratio of the combinations of characters in the F2 progeny is:
9:3:3:1
This confirms that the correct answer is option 'D'.
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Sinjini Iyer answered • Nov 16, 2024 |
રાસાયણિક સમીકરણોનું લેખન અને સંતુલન
રાસાયણિક સમીકરણોનું લેખન અને સંતુલન શીખવું મહત્વપૂર્ણ છે, કારણ કે તે રાસાયણિક પ્રતિક્રિયાઓને સમજવામાં મદદ કરે છે.
રાસાયણિક સમીકરણ શું છે?
- રાસાયણિક સમીકરણો એ રાસાયણિક પ્રતિક્રિયા દર્શાવતી સમીકરણો છે.
- આમાં પ્રતિસાદક અને ઉત્પાદનના સમીકરણો હોય છે.
લેખન પદ્ધતિ
- પ્રતિક્રિયા માટે જરૂરી તત્વો અને સંયોજનોને ઓળખો.<... more
રાસાયણિક સમીકરણોનું લેખન અને સંતુલન શીખવું મહત્વપૂર્ણ છે, કારણ કે તે રાસાયણિક પ્રતિક્રિયાઓને સમજવામાં મદદ કરે છે.
રાસાયણિક સમીકરણ શું છે?
- રાસાયણિક સમીકરણો એ રાસાયણિક પ્રતિક્રિયા દર્શાવતી સમીકરણો છે.
- આમાં પ્રતિસાદક અને ઉત્પાદનના સમીકરણો હોય છે.
લેખન પદ્ધતિ
- પ્રતિક્રિયા માટે જરૂરી તત્વો અને સંયોજનોને ઓળખો.<... more
What is the meaning of biogas?
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Sinjini Iyer answered • Nov 16, 2024 |
What is Biogas?
Biogas is a renewable energy source produced through the anaerobic digestion of organic matter. It primarily consists of methane (CH4) and carbon dioxide (CO2), along with small amounts of other gases. Biogas can be generated from various organic materials, including agricultural waste, animal manure, food waste, and sewage.
How is Biogas Produced?
- Th... more
Biogas is a renewable energy source produced through the anaerobic digestion of organic matter. It primarily consists of methane (CH4) and carbon dioxide (CO2), along with small amounts of other gases. Biogas can be generated from various organic materials, including agricultural waste, animal manure, food waste, and sewage.
How is Biogas Produced?
- Th... more
In a pack of 52 playing cards 1 card is lost.
From remaining a card is drawn, what is probability that it is a queen of heart, if the lost card is a black card?
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Sinjini Iyer answered • Nov 16, 2024 |
To find the probability of drawing the Queen of Hearts after losing a black card from a pack of 52 playing cards, we need to analyze the situation in detail.
Understanding the Scenario
- A standard deck has 52 cards: 26 red cards (hearts and diamonds) and 26 black cards (clubs and spades).
- The Queen of Hearts is one of the red cards in the deck.
Effect of Losing a B... more
- Since a black card is lost, the total number of cards left in the deck is 51.
- The composition of the remaining cards is:
- 25 black cards (since one black card is removed)
- 26 red cards (all red cards remain, including the Queen of Hearts)
Calculating the Probability
- The probability of drawing the Queen of Hearts from the remaining cards can be calculated using the formula:
Probability = (Number of favorable outcomes) / (Total number of outcomes)
- Here, the number of favorable outcomes (drawing the Queen of Hearts) is 1, and the total number of outcomes (remaining cards) is 51.
Final Probability Calculation
- Therefore, the probability of drawing the Queen of Hearts is:
Probability = 1 / 51
This means that after losing a black card, the probability of drawing the Queen of Hearts from the remaining cards in the deck is 1 in 51.
Understanding the Scenario
- A standard deck has 52 cards: 26 red cards (hearts and diamonds) and 26 black cards (clubs and spades).
- The Queen of Hearts is one of the red cards in the deck.
Effect of Losing a B... more
- Since a black card is lost, the total number of cards left in the deck is 51.
- The composition of the remaining cards is:
- 25 black cards (since one black card is removed)
- 26 red cards (all red cards remain, including the Queen of Hearts)
Calculating the Probability
- The probability of drawing the Queen of Hearts from the remaining cards can be calculated using the formula:
Probability = (Number of favorable outcomes) / (Total number of outcomes)
- Here, the number of favorable outcomes (drawing the Queen of Hearts) is 1, and the total number of outcomes (remaining cards) is 51.
Final Probability Calculation
- Therefore, the probability of drawing the Queen of Hearts is:
Probability = 1 / 51
This means that after losing a black card, the probability of drawing the Queen of Hearts from the remaining cards in the deck is 1 in 51.
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Sinjini Iyer asked • Jan 16, 2020 |
The displacement of the body in 5 seconds from the beginning of the motion is
- a)12.5 m
- b)100 m
- c)87.5 m
- d)50 m
Correct answer is option 'D'. Can you explain this answer?
The displacement of the body in 5 seconds from the beginning of the motion is
a)
12.5 m
b)
100 m
c)
87.5 m
d)
50 m
|
Nalini rane answered |
Displacement = Area of ΔABC
a = 1/2 x 5 x 20 = 50 m.
a = 1/2 x 5 x 20 = 50 m.
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Sinjini Iyer asked • Nov 14, 2019 |
If two positive integers a and b are written as a = x3y2 and b = xy3; x, y are prime numbers, then HCF (a, b) is- a)xy
- b)xy2
- c)x3y3
- d)x2y2
Correct answer is option 'B'. Can you explain this answer?
If two positive integers a and b are written as a = x3y2 and b = xy3; x, y are prime numbers, then HCF (a, b) is
a)
xy
b)
xy2
c)
x3y3
d)
x2y2
|
Aditi Deshpande answered |
Given, a = x^3y^2 and b = xy^3, where x and y are prime numbers.
To find: HCF (a, b)
Solution:
1. Prime factorization of a and b:
a = x^3y^2 = xxxyyy
b = xy^3 = xyyy
2. HCF of two numbers is the product of all the common prime factors raised to the lowest power.
3. Common prime factors in a and b are:
xyy
... more
To find: HCF (a, b)
Solution:
1. Prime factorization of a and b:
a = x^3y^2 = xxxyyy
b = xy^3 = xyyy
2. HCF of two numbers is the product of all the common prime factors raised to the lowest power.
3. Common prime factors in a and b are:
xyy
... more
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Sinjini Iyer asked • Sep 22, 2019 |
Why does the grandmother ask the little girl to go make a present for her father? - a)the father’s birthday was the next week
- b)the father was going to be retired the next week
- c)the father was going to get a big reward
- d)all the options are incorrect the next week
Correct answer is option 'A'. Can you explain this answer?
Why does the grandmother ask the little girl to go make a present for her father?
a)
the father’s birthday was the next week
b)
the father was going to be retired the next week
c)
the father was going to get a big reward
d)
all the options are incorrect the next week
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Saptarshi Mehra answered |
One day Kezia's grandma told her that her father birthday was next week and asked her to make a beautiful gift for him.She decided to make pin-cushion. After stitching three side she stated think what to fill it with.Since her grandma was in the garden so she moved into her mother's room in search of scraps and she discovered many sheet of paper on the bed table.She gathered them tore them and filled it in the cushion.Unfortunately her efforts to please his father went in vain.This is because the paper which she has toren and filled into the cushion was actually his father's speech for Port Authority.Her father scolded her and hit her with ruler on his pink,small palm.
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Sinjini Iyer asked • Sep 19, 2019 |
What does a tree absorb in the process of growing?- a)sunlight
- b)air
- c)water
- d)all of the above
Correct answer is option 'D'. Can you explain this answer?
What does a tree absorb in the process of growing?
a)
sunlight
b)
air
c)
water
d)
all of the above
|
Aniket Yadav answered |
all of the above
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Sinjini Iyer asked • Sep 09, 2019 |
Name the types of plate movements. - a)Convergent
- b)Divergent
- c)Transform
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
Name the types of plate movements.
a)
Convergent
b)
Divergent
c)
Transform
d)
All of the above
|
Devansh Datta answered |
The three types of plate movement are divergent, convergent and transform plate boundaries. Divergent occurs when two tectonic plates move away from the other. A convergent boundary is when two plates collide. A transform plate boundary occurs when two plates slide past each other.
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Sinjini Iyer asked • Sep 06, 2019 |
Which wave property determines loudness?- a)pitch
- b)amplitude
- c)frequency
- d)All of these
Correct answer is option 'B'. Can you explain this answer?
Which wave property determines loudness?
a)
pitch
b)
amplitude
c)
frequency
d)
All of these
|
Rohit Verma answered |
Loudness of sound depends upon amplitude. Amplitude is the maximum displacement from mean position.
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Sinjini Iyer asked • Sep 02, 2019 |
The above graph represents- a)constant retardation
- b)constant acceleration
- c)non – uniform acceleration
- d)constant velocity
Correct answer is option 'A'. Can you explain this answer?
The above graph represents
a)
constant retardation
b)
constant acceleration
c)
non – uniform acceleration
d)
constant velocity
|
Anuj Chaudhary answered |
In the speed-time graph shown above, speed is decreasing with time. This type of graph is represented by constant retardation.
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Sinjini Iyer asked • Aug 30, 2019 |
Electrolytic cell is a device for using electrical energy to carry- a)spontaneous chemical reactions
- b)non-spontaneous chemical reactions
- c)none
- d)none
Correct answer is option 'B'. Can you explain this answer?
Electrolytic cell is a device for using electrical energy to carry
a)
spontaneous chemical reactions
b)
non-spontaneous chemical reactions
c)
none
d)
none
|
Mohit Jain answered |
Electrolytic cell converts non spontaneous chemical reaction to electrical energy using electricity.
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Sinjini Iyer asked • Aug 26, 2019 |
Mohr’s salt is a better volumetric agent then ferrous sulphate because- a)All the chemical reactions given by ferrous sulphate are given by Mohr’s salt
- b)It does not effloresce like ferrous sulphate
- c)It is less readily oxidised in the solid state
- d)Its reaction are less violent
Correct answer is option 'C'. Can you explain this answer?
Mohr’s salt is a better volumetric agent then ferrous sulphate because
a)
All the chemical reactions given by ferrous sulphate are given by Mohr’s salt
b)
It does not effloresce like ferrous sulphate
c)
It is less readily oxidised in the solid state
d)
Its reaction are less violent
|
Rajeev Unni answered |
Mohr’s salt is a better volumetric agent then ferrous sulphate because it is less readily oxidised in the solid state. Also Mohr salt is more stable than FeSO4
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Sinjini Iyer asked • Aug 23, 2019 |
In the dynamic equilibrium stage, one of the following events take place. Choose the right one.- a)the concentrations of the products are increased
- b)no change in the concentrations of either of the reactants or products
- c)the concentrations of the reactants are decreased
- d)rates of the forward reaction is faster
Correct answer is option 'B'. Can you explain this answer?
In the dynamic equilibrium stage, one of the following events take place. Choose the right one.
a)
the concentrations of the products are increased
b)
no change in the concentrations of either of the reactants or products
c)
the concentrations of the reactants are decreased
d)
rates of the forward reaction is faster
|
Aman Patel answered |
there is no change in the conc of reactant and product.
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