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.
A magnified and virtual image of a near object is produced by
prism binoculas
astronomical telescope
periscope
simple microscope
Correct answer is D
No explanation has been provided for this answer.
atmospheric pressure is higher at the surface than at the higher altitudes
speed of sound is less than that of light
temperature of the atmosphere decreases with altitude
atmospheric density decreases with altitude
Correct answer is B
No explanation has been provided for this answer.
0.18m
0.50m
1.62m
18.00m
Correct answer is A
hi = \(\frac{ho \times v}{u} = \frac{1.8 \times 0.3}{3} = 0.18m\)
The image of an optical pin placed at the principal focus of a concave mirror will be formed
between the principal focus and the pole
at the centre of the curvature
between the principal focus and the centre of curvature
at infinity
Correct answer is D
No explanation has been provided for this answer.
dispersion
refraction
interference
diffraction
Correct answer is B
No explanation has been provided for this answer.