Class 10
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yaßhræj answered • 6 hours agoIshe samajhne mai to sabki b**t lagne wali h .... 🤭🤭🤭🤭
= ?The ratio of the areas of two similar triangles is equal to the:- a)square of the ratio of their corresponding sides.
- b)the ratio of their corresponding sides
- c)square of the ratio of their corresponding angles
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
The ratio of the areas of two similar triangles is equal to the:
a)
square of the ratio of their corresponding sides.
b)
the ratio of their corresponding sides
c)
square of the ratio of their corresponding angles
d)
None of the above
Drishti Rana ❣️... answered • 7 hours agoOption A is correct.
The area of two similar triangles is equal to the square of ratio of their corresponding sides..
The area of two similar triangles is equal to the square of ratio of their corresponding sides..
Worst experience of life ?
@_ gamechanger 📿 ( left 🤷 ) answered • 8 hours agoKa batai .. ... ...🙆😌🙁
What is India located where is Mumbai?
Sonika Attitdejaatni answered • 9 hours agoKonkan coast
Mumbai lies on the Konkan coast on the west coast of India and has a deep natural harbor.
The Deccan region of India, the capital city of Maharashtra, Mumbai lies on the western coast of India by the bank of the Arabian Sea. Mumbai is made from a group of seven islands and is thus referred to as the Island city.
Aditya Gupta asked • 10 hours agoPractice Test/Quiz or MCQ (Multiple Choice Questions) with Solutions of Chapter "Surface Area and Volumes" are available for CBSE Class 10 Mathematics (Maths) and have been compiled as per the syllabus of CBSE Class 10 Mathematics (Maths) Q. If the volume of a cube is 1728 cm3, the length of its edge is equal to- a)12 cm
- b)14 cm
- c)16 cm
- d)24 cm
Correct answer is option 'A'. Can you explain this answer?
Practice Test/Quiz or MCQ (Multiple Choice Questions) with Solutions of Chapter "Surface Area and Volumes" are available for CBSE Class 10 Mathematics (Maths) and have been compiled as per the syllabus of CBSE Class 10 Mathematics (Maths)
Q. If the volume of a cube is 1728 cm3, the length of its edge is equal to
a)
12 cm
b)
14 cm
c)
16 cm
d)
24 cm
2 mL each of concentrated HCl, HNO3 and a mixture of concentrated HCl and concentrated HNO3 in the ratio of 3 :1 were taken in test tubes labelled as A, B and C. A small piece of metal was put in each test tube. No change occurred in test tubes A and B but the metal got dissolved in test tube C respectively. The metal could be- a)Al
- b)Au
- c)Cu
- d)Ag
Correct answer is option 'B'. Can you explain this answer?
2 mL each of concentrated HCl, HNO3 and a mixture of concentrated HCl and concentrated HNO3 in the ratio of 3 :1 were taken in test tubes labelled as A, B and C. A small piece of metal was put in each test tube. No change occurred in test tubes A and B but the metal got dissolved in test tube C respectively. The metal could be
a)
Al
b)
Au
c)
Cu
d)
Ag
STUDENT answered • 9 hours ago
Mansi Behl asked • 12 hours agoWhich of the following statements is correct about receptors?- a)Gustatory receptors detect taste while olfactory receptors detect smell
- b)Both gustatory and olfactory receptors detect smell
- c)Auditory receptors detect smell and olfactory receptors detect taste
- d)Olfactory receptors detect taste and gustatory receptors smell
Correct answer is option 'A'. Can you explain this answer?
Which of the following statements is correct about receptors?
a)
Gustatory receptors detect taste while olfactory receptors detect smell
b)
Both gustatory and olfactory receptors detect smell
c)
Auditory receptors detect smell and olfactory receptors detect taste
d)
Olfactory receptors detect taste and gustatory receptors smell
A person with defective eyesight is unable to see objects clearly nearer than 1.5 m. He wants to read a book placed at a distance of 30 cm from his eyes. The type of a required lens and its focal length is- a)Concave lens, f = 37.5 cm
- b)Convex lens, f = 30.5 cm
- c)Convex lens, f = 37.5 cm
- d)Concave lens, f = 30.5 cm
Correct answer is option 'C'. Can you explain this answer?
A person with defective eyesight is unable to see objects clearly nearer than 1.5 m. He wants to read a book placed at a distance of 30 cm from his eyes. The type of a required lens and its focal length is
a)
Concave lens, f = 37.5 cm
b)
Convex lens, f = 30.5 cm
c)
Convex lens, f = 37.5 cm
d)
Concave lens, f = 30.5 cm
STUDENT answered • 9 hours ago
Who do you blame for Tricki’s illness?- a)Mrs.Pumphrey
- b)Tricki
- c)Dr.Herriot
- d)Gardener
Correct answer is option 'C'. Can you explain this answer?
Who do you blame for Tricki’s illness?
a)
Mrs.Pumphrey
b)
Tricki
c)
Dr.Herriot
d)
Gardener
Diya Sharma. answered • 9 hours agoAccording to me the Answer is Option A) Mrs. Pumphrey.
Explanation:
As we know that Mrs. Pumphrey was really worried about tricki's health due to her intense Love and Care for him.
And even due to this affection she overfed him , fully Pampered and overcared him which in result made him ill.
so she's responsible for the same..
Explanation:
As we know that Mrs. Pumphrey was really worried about tricki's health due to her intense Love and Care for him.
And even due to this affection she overfed him , fully Pampered and overcared him which in result made him ill.
so she's responsible for the same..
Mansi Behl asked • 17 hours agoTo warn ships of underwater rocks, a light house spreads a red colored light over a sector of angle 80° to a distance of 16.5 km. The area of the sea over which the ships are warned is- a)135.7 km2
- b)200 km2
- c)190.14 km2
- d)180.5 km2
Correct answer is option 'C'. Can you explain this answer?
To warn ships of underwater rocks, a light house spreads a red colored light over a sector of angle 80° to a distance of 16.5 km. The area of the sea over which the ships are warned is
a)
135.7 km2
b)
200 km2
c)
190.14 km2
d)
180.5 km2
The marks obtained by 9 students in Mathematics are 59, 46, 31, 23, 27, 44, 52, 40 and 29. The mean of the data is- a)37
- b)38
- c)39
- d)40
Correct answer is option 'C'. Can you explain this answer?
The marks obtained by 9 students in Mathematics are 59, 46, 31, 23, 27, 44, 52, 40 and 29. The mean of the data is
a)
37
b)
38
c)
39
d)
40
Saxena Aastha answered • 16 hours agoMean = sum of all the observations /total number of observation
mean =
59+46+ 31+ 23+ 27+ 44+ 52+ 40 + 29/9
=531/9
=39
hence option c is correct
Kidney is an excretory and regulatory organ. Which two of the following are regulated effectively by kidneys?- a)CO2 and protein
- b)Sugar and O2
- c)Water and salts
- d)Water and fat
Correct answer is option 'C'. Can you explain this answer?
Kidney is an excretory and regulatory organ. Which two of the following are regulated effectively by kidneys?
a)
CO2 and protein
b)
Sugar and O2
c)
Water and salts
d)
Water and fat
Ỉɬᴢ Sղǿｗᶂʟầᶄḗ answered • 17 hours agoWater & salts are regulated by kidneys .
Direct control of water excretion in the kidneys is exercised by vasopressin, or anti-diuretic hormone (ADH), a peptide hormone secreted by the hypothalamus.
ADH plays a role in lowering osmolarity (reducing sodium concentration) by increasing water reabsorption in the kidneys, thus helping to dilute bodily fluids.Sodium is by far the major s... more
Direct control of water excretion in the kidneys is exercised by vasopressin, or anti-diuretic hormone (ADH), a peptide hormone secreted by the hypothalamus.
ADH plays a role in lowering osmolarity (reducing sodium concentration) by increasing water reabsorption in the kidneys, thus helping to dilute bodily fluids.Sodium is by far the major s... more
निर्देश: निम्नलिखित मुहावरों/लोकोक्तियों के लिए उचित विकल्प चुनिए।जो समान न हो - a)समानन्तर
- b)विषम
- c)असम
- d)असमान
Correct answer is option 'C'. Can you explain this answer?
निर्देश: निम्नलिखित मुहावरों/लोकोक्तियों के लिए उचित विकल्प चुनिए।
जो समान न हो
a)
समानन्तर
b)
विषम
c)
असम
d)
असमान
Ỉɬᴢ Sղǿｗᶂʟầᶄḗ answered • 17 hours agoAsam , option C is correct answer which means unequal , uneven & unlike .
If the radius of a circle is increased by 100%, then its area is increased by- a)100%
- b)300%
- c)200%
- d)400%
Correct answer is option 'B'. Can you explain this answer?
If the radius of a circle is increased by 100%, then its area is increased by
a)
100%
b)
300%
c)
200%
d)
400%
Saxena Aastha answered • 17 hours agoLet, radius of circle =r and area =A
We know that,
A1=πR^2
ACC. to question radius increased by 100 percent.Then area ,
A 2 =π(r+r) ^2
=π(2r) ^2
A2 =4π.r ^2
Now area increased by
A2-A1=4π.r ^2-π.r ^2
= 3π.r ^2
so percentage increase = 3π.r ^2*100/π.r ^2
= 300
therefor answer is B
The straight lines x + y = 0, 3x + y – 4 = 0, x + 3y – 4 = 0 form a triangle which is :- a)Isosceles
- b)Equilateral
- c)Right angled
- d)None of these
Correct answer is option 'A'. Can you explain this answer?
The straight lines x + y = 0, 3x + y – 4 = 0, x + 3y – 4 = 0 form a triangle which is :
a)
Isosceles
b)
Equilateral
c)
Right angled
d)
None of these
Izumi answered • 18 hours agoX+y=0 .. (i)
3x+y−4=0 .. (ii)
x+3y−4=0 .... (iii)
Solving lines (i) and (ii), we get
−x=−3x+4⟹x=2⟹y=−2
∴(i) and (ii) intersect at A=(2,−2)
Solving lines (ii) and (iii), we get
−3x+4=34−x⟹−9x+12=4−x⟹x=1⟹y=1
∴(ii) and (iii) intersect at B=(1,1)
Solving lines (i) and (iii), we get
−x=34−x⟹−3x=4−x⟹x=−2⟹y=2
∴(i) and (iii) intersect at C=(−2,2)... more
3x+y−4=0 .. (ii)
x+3y−4=0 .... (iii)
Solving lines (i) and (ii), we get
−x=−3x+4⟹x=2⟹y=−2
∴(i) and (ii) intersect at A=(2,−2)
Solving lines (ii) and (iii), we get
−3x+4=34−x⟹−9x+12=4−x⟹x=1⟹y=1
∴(ii) and (iii) intersect at B=(1,1)
Solving lines (i) and (iii), we get
−x=34−x⟹−3x=4−x⟹x=−2⟹y=2
∴(i) and (iii) intersect at C=(−2,2)... more
If a, b, c are in A.P. then the straight line ax + by + c = 0 will always pass through a fixed point whoseco-ordinates are :- a)(1, – 2)
- b)(– 1, 2)
- c)(1, 2)
- d)(– 1, – 2)
Correct answer is option 'A'. Can you explain this answer?
If a, b, c are in A.P. then the straight line ax + by + c = 0 will always pass through a fixed point whose
co-ordinates are :
a)
(1, – 2)
b)
(– 1, 2)
c)
(1, 2)
d)
(– 1, – 2)
Izumi answered • 18 hours agoOption A is correct
Because a, b, c are in AP, therefore 2b = a + c. Putting the value of b in ax + by + c= 0, we get
ax+a+c/2(y) +c=0
or, a(2x+y)+c(y+2)=0
or, (2x+y)+[c/a](y+2)=0
This equation represents a family of straight lines passing through the intersection of 2x + y = 0 and and y + 2 =0, i.e. (1, -2).
Because a, b, c are in AP, therefore 2b = a + c. Putting the value of b in ax + by + c= 0, we get
ax+a+c/2(y) +c=0
or, a(2x+y)+c(y+2)=0
or, (2x+y)+[c/a](y+2)=0
This equation represents a family of straight lines passing through the intersection of 2x + y = 0 and and y + 2 =0, i.e. (1, -2).
Why is magnesium ribbon cleaned?
Izumi answered • 18 hours agoMagnesium is a very reactive metal, which when come in contact with oxygen form a layer of magnesium oxide(Mgo).which prevents the burning of magnesium ribbon that is why, a magnesium ribbon is cleaned before burning it using Sandpaper.
What is ammeter?
R A I Y A N - Z A I B answered • 19 hours agoAmmeter, instrument for measuring either direct or alternating electric current, in amperes. An ammeter can measure a wide range of current values because at high values only a small portion of the current is directed through the meter mechanism; a shunt in parallel with the meter carries the major portion.
Who is the author of the story ‘A Triumph Of Surgery’ ?- a)James Herriot
- b)Ruskin Bond
- c)Victor Canning
- d)Robert Arthur
Correct answer is option 'A'. Can you explain this answer?
Who is the author of the story ‘A Triumph Of Surgery’ ?
a)
James Herriot
b)
Ruskin Bond
c)
Victor Canning
d)
Robert Arthur
Yogi Boy answered • 21 hours agoJames herriot is correct not c
In the following distribution, find the missing frequency p,when it is given that mean is 52.4 CLASS , FREQUENCY 0-20 14 20-40 P 40-60 24 60-80 32 80-100 10 100-120 2?
Irtaqua Sabir answered • 22 hours agoMean = sigma fıXı/sigma fı
52.4 = 4700+30p/82 +p
52.4p+4296.8 =4700 + 30p
22.4p = 403.2
p = 18
52.4 = 4700+30p/82 +p
52.4p+4296.8 =4700 + 30p
22.4p = 403.2
p = 18
How did Tricki look?- a)very thin
- b)like a bloated sausage
- c)very smart
- d)always ready to run
Correct answer is option 'B'. Can you explain this answer?
How did Tricki look?
a)
very thin
b)
like a bloated sausage
c)
very smart
d)
always ready to run
Swati Malkani answered • 23 hours agoOption B is correct
An object of size 2.0 cm is placed perpendicular to the principal axis of a concave mirror. The distanceof the object from the mirror equals the radius of curvature. The size of the image will be - a)0.5 cm
- b)1.5 cm
- c)1.0cm
- d)2.0 cm
Correct answer is option 'D'. Can you explain this answer?
An object of size 2.0 cm is placed perpendicular to the principal axis of a concave mirror. The distance
of the object from the mirror equals the radius of curvature. The size of the image will be
a)
0.5 cm
b)
1.5 cm
c)
1.0cm
d)
2.0 cm
Swati Malkani answered • 23 hours agoOption D is correct
Full form of BMI?
Sonika Attitdejaatni answered • yesterdayBody Mass Index is a simple calculation using a person's height and weight. The formula is BMI = kg/m2 where kg is a person's weight in kilograms and m2 is their height in meters squared. A BMI of 25.0 or more is overweight, while the healthy range is 18.5 to 24.9.
| BMI | Weight Status |
|---|---|
| Below 18.5 | Underweight |
| 18.5 – 24.9 | Normal or Healthy Weight |
| 25.0 – 29.9 | Overweight |
| 30.0 and Above | Obese |
Who founded the Swaraj Party within the Congress to fight elections for the Councils and demand reform.class 10 history?
Ranu Nahak answered • yesterdayCHITRANJAN DAS AND MOTILAL NEHRU...!
How is Red Soil formed?
Sonika Attitdejaatni answered • yesterdayRed soil is formed by weathering of old crystalline igneous and metamorphic rocks. It is rich in iron and hence appears red in color. In India, it is found mainly in the Deccan plateau.
Red soil:
1.Seen mainly in low rainfall areas.
2.Also known as Omnibus group.
3.Porous, friable structure.
4.Absence of lime, kankar (impure calcium carbonate).
5.Deficient in: lime, phosphate, manganese, nitrogen, humus, and potash.
6.Colour: Red because of Ferric oxide.
7.Texture: Sandy to clay and loamy
I hope this helps you
How many Jews were murdered by the Nazis during the Holocaust?- a)1 million
- b)3 million
- c)4 million
- d)6 million
Correct answer is option 'D'. Can you explain this answer?
How many Jews were murdered by the Nazis during the Holocaust?
a)
1 million
b)
3 million
c)
4 million
d)
6 million
Poonam Fogat answered • yesterdayAcc to nazis, Jews were inferior people they believe that Nordic Aryans with blue coloured eyes must live in Germany . so Nazis killed about 6 million Jews giving reason that they are unproductive to the nation .
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