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.
According to kinetic molecular model, in gases
The particles are closely packed together, they occupy minimum space & are usually arranged in a regular pattern
The particles occur in clusters with molecules slightly farther apart
The molecule are very fast apart & occupy all the space made available
The particle vibrate about fixed positions and are held together by the strong intermolecular bonds between them
Correct answer is C
In kinetic molecular model, gases are energized and thus moves freely, fast as they occupy specific space
Diaphragm, Aperture, film
Aperture, Diaphragm, Film
Film, Diaphragm, Aperture
Film, Aperture, Diaphragm
Correct answer is D
- retina is similar to film
- pupil is similar to aperture
- iris is similar to diaphragm
6.7N/kg
7.9N/kg
8.0N/kg
9.8N/kg
Correct answer is D
| E | = | F
m |
= | GMm/d\(^2\)
m |
= | GM
d\(^2\) |
| E | = | 6.7 × 10\(^{-11}\) × 6 × 10\(^{24}\)
(6.4 × 10\(^6\))\(^2\) |
= | 9.8N
kg |
E = g = 9.8N/kg
I & II only
I & III only
II & III only
I, II & III
Correct answer is D
- sound travels through solids, liquids & gases
- sound travels faster in solid than in liquid & faster in liquid than in gases.
I & II
II & III
III & IV
IV & V
Correct answer is C
As conduction of gases is at low pressure and high voltage, called field or cold cathode emission.