set 4 MCQ Questions & Answers Detailed Explanation
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The following question based on light, heat, thermodynamics, wave motion, sound, optics & oscillations topic of general science mcq
(a) The colours can be separated by plants
(b) The colours can be separated by a filter
(c) The colours can be separated by a prism
(d) The colours cannot be separated
The correct answers to the above question in:
Answer: (c)
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Read more light heat thermodynamics wave sound optics oscillation Based General Science Questions and Answers
Question : 1
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 »Answer: (b)
Question : 2
_____ 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 »Answer: (b)
Question : 3
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 |
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 »Answer: (a)
Question : 4
When water is heated from 0°C to 20°C, how does its volume change?
a) It shall decrease
b) It shall increase
c) It shall first increase and then decrease
d) It shall first decrease and then increase
Answer »Answer: (d)
Question : 5
The bulb of one thermometer is spherical, while that of other is cylindrical. If both of them have equal amount of mercury, which thermometer will respond quickly to the temperature?
a) elliptical bulb
b) spherical bulb
c) cylindrical bulb
d) both (a) and (c)
Answer »Answer: (c)
As the surface area of cylindrical bulb is larger than a spherical bulb, heat will be transmitted quickly through a cylindrical bulb and it will respond quickly to the temperature.
Question : 6
Consider the following statements.
Assertion (A):
Space based solar power (SBSP), it is suggested be made a national goal.
Reason (R):
Supply of SBSP is 99% uninterrupted throughout the year, besides the enormity of energy availability.
Select the correct answer using the codes given below.
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 »Answer: (c)
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