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The following question based on light, heat, thermodynamics, wave motion, sound, optics & oscillations topic of general science mcq
Assertion (A):
If ice collects in the freezer, the cooling in the refrigerator is affected adversely.
Reason (R):
Ice is a poor conductor. 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
The correct answers to the above question in:
Answer: (c)
Practice light, heat, thermodynamics, wave motion, sound, optics & oscillations (set 16) Online Quiz
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Read more light heat thermodynamics wave sound optics oscillation Based General Science Questions and Answers
Question : 1
Power of Sunglass is
a) 2 dioptre
b) 1 dioptre
c) 0 dioptre
d) 4 dioptre
Answer »Answer: (c)
Question : 2
The speed of light will be minimum while passing through
a) Water
b) Vacuum
c) Glass
d) Air
Answer »Answer: (c)
Question : 3
When a sound wave goes from one medium to another, the quantity that remains unchanged is
a) wavelength
b) frequency
c) amplitude
d) speed
Answer »Answer: (b)
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