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.
The electromagnetic waves that are sensitive to temperature changes are
X-rays
Gamma-rays
Ultra-violet rays
Infra-red rays
Correct answer is D
No explanation has been provided for this answer.
2.33
2.25
1.33
1.25
Correct answer is D
n = \(\frac{3 \times\ 10^8}{2.4 \times\ 10^8}\)
n = 1.25
convex mirror with his face at the focus
concave mirror with his face between the focus and the mirror
concave mirror with his face at the focus
convex mirror with his face between the focus and the mirror
Correct answer is B
No explanation has been provided for this answer.
decrease the length of the wire
increasing the length of the wire
increasing the mass per unit length of the wire
changing the temperature of the wire
Correct answer is B
No explanation has been provided for this answer.
The colours seen in the thin films of oil on the road and in soap bubbles are due to
reflection
interference
diffraction
polarization
Correct answer is B
A simple form of interference pattern is obtained if two plane waves of the same frequency intersect at an angle. Interference is essentially an energy redistribution process.