The disturbance travelling in a medium is called:
Wave motion
Simple harmonic motion
The center of curved surface of spherical mirror is called:
Focus
Axis
Centre
Pole
The galvanometer has been named after the scientist:
Lewis
Lowry bronsted
Luigi Galvano
Galvano Einstein
the distance between two consecutive trough or crest is called:
wavelength
frequency
time period
amplitude
The intensity of lawn mover is:
10-1 wm-2
10-2 wm-2
10-3 wm-2
10-4 wm-2
Frequency of tuning fork depends upon its …………. of prongs:
1 bel=
0.1 dB
10 dB
100 dB
0.01 dB
The commercial unit of electrical energy is:
Joule
Watt
Kilowatt hour
Electron volt
The refractive index of ice is:
1.00
1.33
1.31
2.42
