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.
1800J
1600J
600J
440J
Correct answer is B
Potential energy at the highest point = mgh
PE = 4 × 10 × 40 = 1600J
The part of the human eye that does similar work as the diaphragm of a camera lens is the
Ciliary muscles
Pupil
Iris
Retina
Correct answer is C
Iris is similar to diaphragm.
Conduction only
Convection only
Radiation only
All these methods
Correct answer is C
Vacuum is an enclosure with no air or agent of heat transfer
First law of motion
Second law of motion
Third law of motion
Law of universal gravitation
Correct answer is A
Newton's First law of motion describes the straight motion of a body.
Which of the following characteristics of a wave is used in the measurement of the depth of the Sea?
diffraction
interference
refraction
reflection
Correct answer is D
Depth of sea can be measured by echo, a reflected sound waves.