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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) large size of stars
(b) large distance of stars and storms in air
(c) small size of stars
(d) large distance of stars and fluctuations in the density of air
The correct answers to the above question in:
Answer: (d)
Practice light, heat, thermodynamics, wave motion, sound, optics & oscillations (set 10) Online Quiz
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Read more light heat thermodynamics wave sound optics oscillation Based General Science Questions and Answers
Question : 1
The temperature of a room is 77°F. What would it be on the Celsius scale?
a) 60°C
b) 25°C
c) 45°C
d) 350°C
Answer »Answer: (b)
Question : 2
Assertion (A):
In a motion picture, usually 24 frames are projected every second over the whole length of the film.
Reason (R):
An image formed on the retina of eye persists for about 0.1s after the removal of the stimulus.
Code
a) (A) is true, but (R) is false
b) Both (A) and (R) are true, but (R) is not the correct explanation of (A)
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: (a)
Question : 3
In lateral inversion
a) upside of the object will be down side of the object.
b) right side of the object will be right side of the image.
c) left side of the object will be left side of the image.
d) right side of the object will be left side of the image.
Answer »Answer: (d)
Question : 4
A sonometer wire having a length of 50 cm is vibrating in the fundamental mode with a frequency of 100Hz. Which of the following is the type of propagating wave and its speed?
a) Transverse, 50 m/s
b) Longitudinal, 50 m/s
c) Longitudinal, 100 m/s
d) Transverse, 100 m/s
Answer »Answer: (d)
Question : 5
In SONAR, we use
a) infrasonic waves
b) ultrasonic waves
c) radio waves
d) audible sound waves
Answer »Answer: (b)
Question : 6
Consider the following statements :
- Fahrenheit is the smallest unit measuring temperature.
- Fahrenheit was the first temperature scale used for measuring temperature.
- The temperature at which Centigrade and Fahrenheit thermometers read the same is – 40°.
a) 2 and 3
b) 1 and 3
c) 1 and 2
d) 1, 2 and 3
Answer »Answer: (b)
Reamer was the first temperature scale.
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