Question

Choose the correct alternative.
i) Stars twinkle because of the
a) explosions occurring in stars from time to time.
b) absorption of light in the earth's atmosphere
c) motion of stars.
d) changing refractive index of the atmospheric gases.
ii) According to Newton's first law of motion, higher the mass
_ is the inertia.
a) lower
b) higher
c) zero
d) double
iii) Which of the following metals does not react with cold or hot water but reacts with steam?
a) Potassium
b) Calcium
c) Magnesium d) Iron
iv) A student obtains a clear image of a candle on a screen with the help of convex lens. He now
wants to focus on a distant tree and obtain a clear image. In which direction should he move
the lens in order to get a clear image?
a) Behind the screen
b) Away from the screen
c) Towards the screen
d) At a very long distance from the screen.
v) Water expands on reducing its temperature below__
a) 0
b) 4
d) 5
OC
c) 12​

Answer 1

Answer:

1. d)

2. b)

3. d)

4. c)

5. b)

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Answer 2

Answer:

Pls mark Brainliest.

1. D)
2. B)
3. B)
4. C)
5. C)

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