Reflection
Refraction
Diffraction
Polarization
Interference
Correct answer is D
No explanation has been provided for this answer.
I only
II only
III only
I and II only
I, II and III.
Correct answer is E
No explanation has been provided for this answer.
50 Hz
75 Hz
100 Hz
150 Hz
200 Hz
Correct answer is E
No explanation has been provided for this answer.
real, inverted and magnified
at the principal focus
real and diminished
erect and virtual
at the centre of curvature
Correct answer is E
No explanation has been provided for this answer.
Which of the following is not self-luminous?
Incandescent electric bulb
Incandescent fluorescent tube
Lighted candle
The moon
The sun
Correct answer is D
No explanation has been provided for this answer.