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 resultant of the parallel forces is zero
the algebraic sum of all the moments of the forces is zero
all the parallel forces must not be equal in magnitude and direction
the sum of forces in one direction must be equal to the sum of forces in the opposite direction
Correct answer is C
all the parallel forces must be equal in magnitude and direction
1
2
None Of The Above
4
Correct answer is C
At the lowest point i.e at point 2
20 N/m\(^2\)
100 N/m\(^2\)
400 N/m\(^2\)
300 N/m\(^2\)
Correct answer is A
| P | = | F
A |
= | mg
A |
= | (ρ × v) × g
A |
= | ρ × (A × h) × g
A |
P = 100 × 2 × 10\(^{-2}\) × 10 = 20 N/m\(^2\)
I & IV only
II & IV only
III & IV only
I, II and III only
Correct answer is D
- Waves are produced by vibration
- Waves transmit energy along the medium
- Particles of a medium vibrate with the wave motion without the entire medium
- Some waves require medium for transmission (mechanical).
The angular dispersion of a prism depends on
The index of refraction only
The angle of incidence as well as the index of refraction
The angle of incidence only
The thickness of the prism only
Correct answer is A
Dispersion is due to different refractive indices speeds and wavelengths.