set 14 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 16 EXERCISES
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The following question based on light, heat, thermodynamics, wave motion, sound, optics & oscillations topic of general science mcq
(a) Mesosphere
(b) Stratosphere
(c) Troposphere
(d) Ionosphere
The correct answers to the above question in:
Answer: (d)
Practice light, heat, thermodynamics, wave motion, sound, optics & oscillations (set 14) Online Quiz
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Read more light heat thermodynamics wave sound optics oscillation Based General Science Questions and Answers
Question : 1
Placement of another identical prism in an inverted position with respect to the first and allowing the colours of spectrum to pass through it will
a) keep the spectrum as before
b) change the spectrum into white light
c) change the spectrum into a black band
d) split into more colours
Answer »Answer: (b)
Placement of another identical prism in an inverted position with respect to the first and allowing the colours of spectrum to pass through it will change the spectrum into white light.
Question : 2
When light waves pass from air to glass the variable affected are
a) Wavelength and frequency
b) Velocity and frequency
c) Wavelength, frequency and velocity
d) Wavelength and velocity
Answer »Answer: (d)
Question : 3
In television broadcast, the picture signals are transmitted by
a) Frequency modulation
b) Phase modulation
c) Amplitude modulation
d) Angle modulation
Answer »Answer: (c)
Question : 4
The acronym for LASER is
a) Low Amplitude Short Energy Radiation
b) Light Amplification by Stimulated Emission of Radiation
c) Low Amplitude Stimulated Emission of Radiation
d) Light Amplification by Short Energy Radiation
Answer »Answer: (b)
Question : 5
Assertion (A):
The boiling point of water decreases as the altitude increases.
Reason (R):
The atmospheric pressure increases with altitude.
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: (b)
Question : 6
Consider the following statements : If the same note is played on a flute and a sitar, one can still distinguish between them because they differ in
- frequency
- intensity
- quality
a) 3 only
b) 1 only
c) 2 and 3
d) 2 only
Answer »Answer: (a)
The difference in music from both the instruments is due to quality difference.
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