Question

1. State whether the following statements are True/False.
(a) Image formed by a mirror is due to refraction of light.
(b) The density of a substance is not changed by the change in its size or shape.
(c) At high altitudes water boils below 1000
C.
(d) When a boy doubles his speed, his kinetic energy also doubles.
(e) The kinetic energy of the molecules of a solid increases when the temperature of the solid
increases.
2. Fill in the blanks:
(a) The speed of violet light is ……… whereas speed of red light is …….… .
(b) The volume of ………… solids can be measured by using displacement method.
(c) The apparent weight of floating body is ………. .
(d) 1 H.P = ………W.

Answer 1

Answer:

a)true

b)true

c)true

d)true

e)true

and fill up i don't know

Explanation:

I hope this answer is helpful for you

Answer 2

Answer:

1) State whether the following

a) False

b) True

c) True

d) False

e) True

2) Fill in the blanks:

a) 299,792 kilometers and 400 million

b) stone

c) 0

d) 735.499

Explanation:

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