NDA 2018 Paper 2 | Physics Question 139 | General Science

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NDA 2018 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

Consider the following velocity and time graph

Image

Which one of the following is the value of average acceleration from 8 s to 12 s ?

8 m/s²

12 m/s²

2 m/s²

$$-$$1 m/s²

NDA 2018 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

If the focal length of a convex lens is 50 cm, then which one of the following is its power?

+2 D

+0.02 D

$$-$$0.5 D

+0.5 D

NDA 2018 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

A ball is released from rest and rolls down an inclined plane as shown in the following figure, requiring 4 s to cover a distance of 100 cm along the plane

Image

Which one of the following is the correct value of angle $$\theta$$ that the plane makes with the horizontal ? (g = 1000 cm/s²)

$$\theta$$ = sin^$$-$$1 (1/98)

$$\theta$$ = sin^$$-$$1 (1/20)

$$\theta$$ = sin^$$-$$1 (1/80)

$$\theta$$ = sin^$$-$$1 (1/100)

NDA 2018 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

The coefficient of areal expansion of a material is 1.6 $$\times$$ 10^$$-$$5 K^$$-$$1. Which one of the following gives the value of coefficient of volume expansion of this material?

0.8 $$\times$$ 10^$$-$$5 K^$$-$$1

2.4 $$\times$$ 10^$$-$$5 K^$$-$$1

3.2 $$\times$$ 10^$$-$$5 K^$$-$$1

4.8 $$\times$$ 10^$$-$$5 K^$$-$$1

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Questions Asked from Marks 2.5