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.
0.8Hz
5.0Hz
50.0Hz
80.0hz
Correct answer is D
f = vπ=200.25=80Hz
Which of the following observations cannot be explained using the rectilinear propagation of light?
production of images by a pinhole camera
production of real images of objects by lenses
formation of an annular eclipse
diffraction patterns of light
Correct answer is B
No explanation has been provided for this answer.
The eclipse of the moon occurs when the
moon comes exactly between the earth and the sun
earth comes exactly between the moon and the sun
sun comes exactly between the earth and the moon
moon reflects all the rays from the sun onto the earth
Correct answer is B
No explanation has been provided for this answer.
A note of frequency 2000Hz has a velocity of 400 ms-1. calculate the wavelength of the note
5.0m
2.0m
0.5m
0.2m
Correct answer is D
π=vf=4002000=0.2m
The S.I units of frequency, period and amplitude of a wave are respectively
hertz, second and centimeter
second, metre and hertz
metre, hertz and seconds
hertz, second and metre
Correct answer is D
No explanation has been provided for this answer.