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 : 6 [UPPCS (Pre) 2014]

The minimum height of a plane mirror to see the full size image of a person is equal to

a) One-fourth the height of the person

b) Half the height of the person

c) The height of the person

d) Double the height of the person

Answer: (b)

Question : 7

_____ is the characteristic of a musical sound by which a loud sound can be distinguished from a faint sound even though both have the same pitch.

a) Quality

b) Loundness

c) Pitch

d) None of these

Answer: (b)

Question : 8

Match the Column - I and Column - II

Column I Column II
A. Audible range in humans P. greater than 20,000 Hz
B. Ultrasonic waves Q. 20 Hz – 20,000 Hz
C. Infrasonic waves R. 1498 m/s
D. Speed of sound in water (distilled) S. 343.2 m/s
E. Speed of sound in air T. less than 20 Hz
Choose the correct option from the codes given below for (A), (B), (C), (D) and (E).

a) A-Q; B-P; C-T; D-R; E-S

b) A-Q; B-P; C-T; D-S; E-R

c) A-P; B-Q; C-T; D-R; E-S

d) A-Q; B-T; C-P; D-R; E-S

Answer: (a)

Question : 9 [UP (Spl) (Pre) 2002]

Assertion (A):
Reveraberation mainly feels in large churches and in other large buildings.
Reason (R):
The walls, roof and ground may cause multiple sound reflections.
Code

a) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

b) (A) is true, but (R) is false

c) Both (A) and (R) are true and (R) is the correct explanation of (A)

d) (A) is false, but (R) is true

Answer: (c)

Question : 10 [BPSC (Pre) 2005]

The correct order of colours in a rainbow is

a) Blue, yellow, green

b) Violet, green, blue

c) Blue, green, violet

d) Blue, green, yellow

Answer: (d)

IMPORTANT general science mcq EXERCISES

set 4 Online Quiz

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1642 light thermodynamics sound optics and oscillations based general science mcq set 4 question answer pdf
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