Explanation:
A periodic motion need not be necessarily oscillatory.
For example: The moon revolving around the earth.
Also, an oscillatory motion need not be necessarily periodic.
For example: Damped harmonic motion.
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The chemical equivalent of copper and zinc are 32 and 108 respectively. When copper and silver voltameter are connected in series and electric current is passed through for sometimes, 1.6 g of copper is deposited. Then, the mass of silver deposited will be
|
(a) 3.5 g |
(b) 2.8 g |
(c) 5.4 g |
(d) None of these |
A dip needle lies initially in the magnetic meridian when it shows an angle of dip q at a place. The dip circle is rotated through an angle x in the horizontal plane and then it shows an angle of dip 
. Then 
is
|
(a) |
(b) |
(c) |
(d) cos x |
A 25 watt, 220 volt bulb and a 100 watt, 220 volt bulb are connected in series across a 220 volt lines. Which electric bulb will glow more brightly
|
(a) 25 watt bulb |
(b) 100 watt bulb |
|
(c) First 25 watt and then 100 watt |
(d) Both with same brightness |
The refractive index of water is 1.33. What will be the speed of light in water
|
(a) 3 |
(b) 2.25 |
(c) 4 |
(d) 1.33 |
