# Class 10

## Ygfdsdtuhbcdhjioojmnvcdssazvbjoojjbddtyuhhvvbbnkjhgvb mkkjjhggv?

Ishe samajhne mai to sabki b**t lagne wali h .... 🤭🤭🤭🤭
Abhinav Behal asked   •  3 hours ago

## In Northern Ireland, the difference between Protestants and Roman Catholics led toa)civil warb)social divisionc)social differencesd)none of the aboveCorrect answer is option 'A'. Can you explain this answer? Mansi Behl asked   •  5 hours ago

## In ΔDEF and ΔPQR, ∠D = 30°, ∠P = 30°, ∠E = 50°, ∠Q = 50° DE = 7 cm, PQ = 13cm = ?​a)7/13b)49/169c)3.5/6.5d)21/39Correct answer is option 'B'. 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 sidesc)square of the ratio of their corresponding anglesd)None of the aboveCorrect answer is option 'A'. Can you explain this answer?

Option A is correct.
The area of two similar triangles is equal to the square of ratio of their corresponding sides..

## Worst experience of life ?

Ka batai .. ... ...🙆😌🙁

## Needed a Test for money and credit? Related: Social Studies (SST) Class 10? ## What is India located where is Mumbai? Konkan 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.

## If the area of a circle is ‘A’, radius of the circle is ‘r’ and its circumference is ‘C’, thena) b) c) d)rC = 2ACorrect answer is option 'D'. Can you explain this answer? Taniya Mahalwal asked   •  8 hours ago

## If the sum and product of the roots of the equation kx2+6x+4k = 0 are equal, then k =a)3/2b)2/3c)-2/3d)-3/2Correct answer is option 'D'. Can you explain this answer? ## If the perimeter of a sector of a circle of radius 5.2 cm. is 16.4 cm. What multiple of the radius is the area of the sector?​a)5thb)3rdc)4thd)2ndCorrect answer is option 'B'. 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 toa)12 cmb)14 cmc)16 cmd)24 cmCorrect answer is option 'A'. 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 bea)Alb)Auc)Cud)AgCorrect answer is option 'B'. Can you explain this answer? Mansi Behl asked   •  12 hours ago

## Which of the following statements is correct about receptors?a)Gustatory receptors detect taste while olfactory receptors detect smellb)Both gustatory and olfactory receptors detect smellc)Auditory receptors detect smell and olfactory receptors detect tasted)Olfactory receptors detect taste and gustatory receptors smellCorrect answer is option 'A'. 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 cmb)Convex lens, f = 30.5 cmc)Convex lens, f = 37.5 cmd)Concave lens, f = 30.5 cmCorrect answer is option 'C'. Can you explain this answer? ## Who do you blame for Tricki’s illness?a)Mrs.Pumphreyb)Trickic)Dr.Herriotd)GardenerCorrect answer is option 'C'. Can you explain this answer?

According 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..
Mansi Behl asked   •  17 hours ago

## 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 km2b)200 km2c)190.14 km2d)180.5 km2Correct answer is option 'C'. Can you explain this answer? ## What is full form of AP?

AIRTHMATIC PROGRESSION.

## Where is Eiffel tower located?

France
Mansi Behl asked   •  18 hours ago

## The area of the square that can be inscribed in a circle of radius 8 cm isa)256 cm2b)128 cm2c)64√2 cm2d)64 cm2Correct answer is option 'B'. 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 isa)37b)38c)39d)40Correct answer is option 'C'. Can you explain this answer?

Mean = 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

Smit Trivedi asked   •  18 hours ago

## If x, y ε R and x > y ⇒ |x| < |y|, then–a)x < 0b)x > 0c)y > 0d)y < 0Correct answer is option 'A'. 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 proteinb)Sugar and O2c)Water and saltsd)Water and fatCorrect answer is option 'C'. Can you explain this answer?

Water & 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
Aryan Garg asked   •  18 hours ago

## If x, y ε R and x < y ⇒ x2 > y2 then –a)x > 0b)y > 0c)x < 0d)y < 0Correct answer is option 'D'. 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)असमानCorrect answer is option 'C'. Can you explain this answer?

Asam , 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 bya)100%b)300%c)200%d)400%Correct answer is option 'B'. Can you explain this answer?

Let, 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
Gunal Gupta asked   •  18 hours ago

## If x, y ε R and |x| + |y|= 0, then –a)x > 0, y < 0b)x < 0, y > 0c)x = 0, y = 0d)None of theseCorrect answer is option 'C'. 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)Isoscelesb)Equilateralc)Right angledd)None of theseCorrect answer is option 'A'. Can you explain this answer?

X+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

## 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?

Option 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).
Hemant Sharma asked   •  18 hours ago

## If x|y, where x > 0, y > 0 (x, y ε z) then –a)x < yb)x = yc)x ≤ yd)x ≥ yCorrect answer is option 'C'. Can you explain this answer? ## Why is magnesium ribbon cleaned?

Magnesium 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.
Dilip Prajapati asked   •  20 hours ago

## The radius of the circle passing through the point (6, 2), two of whose diameters are x + y = 6 and x + 2y =4 is :a)10b)2√5c)6d)4Correct answer is option 'B'. Can you explain this answer? ## What is ammeter?

Ammeter, 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.
Sanjay Samal asked   •  20 hours ago

## In a ΔABC, if A is the point (1, 2) and equations of the median through B and C are respectively x + y =5 and x = 4, then B is :a)(1, 4)b)(7, – 2)c)(4, 1)d)(– 2, 7)Correct answer is option 'B'. Can you explain this answer? ## Who is the author of the story ‘A Triumph Of Surgery’ ?a)James Herriotb)Ruskin Bondc)Victor Canning   d)Robert ArthurCorrect answer is option 'A'. Can you explain this answer?

James 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?

Mean = sigma fıXı/sigma fı
52.4 = 4700+30p/82 +p
52.4p+4296.8 =4700 + 30p
22.4p = 403.2
p = 18
Minu Jha asked   •  22 hours ago

## What gives Anne a renewed optimism towards her diary? -> She destroyed the Horcrux part.a)Trueb)FalseCorrect answer is option 'B'. Can you explain this answer? ## How did Tricki look?a)very thin                                                      b)like a bloated sausagec)very smart                                                  d)always ready to runCorrect answer is option 'B'. Can you explain this answer?

Option B is correct

## which is the longest bone in human body?

Femur..
Mazhar Shaikh asked   •  22 hours ago

## 1) Given that x – √5 is a factor of the polynomial x3 – 3√5 x2 – 5x + 15√5, find all the zeroes of the polynomial.(x -3) and (x + √5)? Option A is correct

## निर्देश: निम्नलिखित प्रत्येक चार विकल्पों में से बेमेल असंगत. शब्द चिन्हित कीजिए।a)अग्नि    b)आग        c)अनल    d)धूपCorrect answer is option 'D'. Can you explain this answer? X= 9..

## In the figure AD is the external bisector of ∠EAC, intersects BC produced to D. If AB = 12 cm, AC = 8 cmand BC = 4 cm, find CD. a)10 cmb)6 cmc)8 cmd)9 cmCorrect answer is option 'C'. Can you explain this answer?

Option C is correct

## निर्देश: निम्नलिखित प्रश्न में दी गई रचना के रचयिता का चयन दिए गये चार विकल्पों से कीजिए।        कवि प्रिया        a)केशवदास    b)घनानंद        c)ग्वाल    d)तुलसीदासCorrect answer is option 'A'. Can you explain this answer?

Option A is correct here

## 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 cmb)1.5 cmc)1.0cmd)2.0 cmCorrect answer is option 'D'. Can you explain this answer?

Option D is correct

## Amount of oxygen which is transported by one gram of haemoglobin is :-a)20 mlb)13.4 mlc)1.34 mld)None of theseCorrect answer is option 'C'. Can you explain this answer?

Option C is correct

## What is PH value of WATER ?

7*1=7 ph value of water

## Full form of BMI?

Body 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.
BMIWeight Status
Below 18.5Underweight
18.5 – 24.9Normal or Healthy Weight
25.0 – 29.9Overweight
30.0 and AboveObese

## Who is the CEO of NASA?

#James Frederick Bridenstine(JiM)..!

## Who founded the Swaraj Party within the Congress to fight elections for the Councils and demand reform.class 10 history?

CHITRANJAN DAS AND MOTILAL NEHRU...!

## Dustinguish between Stock and Reserve?

. ## How is Red Soil formed?

Red 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 millionb)3 millionc)4 milliond)6 millionCorrect answer is option 'D'. Can you explain this answer?

Acc 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 .
Fetching relevant content for you