light, heat, thermodynamics, wave motion, sound, optics & oscillations - Category wise Question and Answer Practice Test with Solutions

light, heat, thermodynamics, wave motion, sound, optics & oscillations PRACTICE TEST [16 - EXERCISES]

set 1

set 2

set 3

set 4

set 5

set 6

set 7

set 8

set 9

set 10

set 11

set 12

set 13

set 14

set 15

set 16

Question : 1

Magnification produced by a rear view mirror fitted in vehicles

a) is equal to one

b) is less than one

c) is more than one

d) can be more than or less than one depending upon the position of the object in front of it

Answer: (b)

Question : 2

Consider the following statements:

  1. Two bodies in contact must be in thermal equilibrium.
  2. A tightly closed metal lid of a glass bottle can be opened more easily if it is put in hot water for sometime.
  3. The coefficient of expansion of metal lid is greater than that of glass.
Which of the statements are correct?

a) 2 and 3

b) 1 and 3

c) 1 and 2

d) 1, 2 and 3

Answer: (d)

A metal is a good conductor of heat and electricity while glass on the other hand is a poor conductor of heat.

Question : 3

The least distance of distinct vision of a normal eye of an adult is

a) 25 mm

b) 25 m

c) 25 cm

d) None of these

Answer: (c)

Question : 4

For seeing a cricket match, we prefer binoculars to the terrestrial telescope, because

a) to avoid chromatic aberration

b) binoculars give three-dimensional view

c) terrestrial telescope gives inverted image

d) to have larger magnification

Answer: (b)

Question : 5 [CDS]

An oscilloscope is an instrument which allows us to see waves produced by

a) X-rays

b) Visible light

c) Sound

d) Gamma rays

Answer: (c)

IMPORTANT general science mcq EXERCISES

set 14 Online Quiz

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1652 heat wave motion sound optics oscillations based general science mcq set 14 question answer pdf
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