Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
Which of the following instruments gives a pure note when sounded?
talking drum
siren
turning fork
guitar
Correct answer is C
No explanation has been provided for this answer.
179.0ms-1
100.0ms-1
15.8ms-1
8.0ms-1
Correct answer is B
v = \(\sqrt{\frac{T}{m}} = \sqrt{\frac{800}{0.08}} = 100\)m/s
The speed of sound in air is directly proportional to
its temperature on the celsius scale
its temperature in the thermodynamic scale
the cube root of its temperature on its celcius scale
the square roor of its temperature on the absolute scale
Correct answer is D
No explanation has been provided for this answer.
Which of the following statements about the human eye and the camera is correct?
both form virtual image of objects
the image formed by the eye is upright in the retina while that formed by the camera is inverted on the film
the inside of both of them is blackened to absorb unwanted light
the focal length of both eye lens and the camera lens can be varied
Correct answer is C
No explanation has been provided for this answer.
Which of the following pairs of rays shows the widest separation in the spectrum of white light?
green and blue
orange and indigo
blue and violet
red and yellow
Correct answer is B
No explanation has been provided for this answer.