A transverse wave and a longitudinal wave travelling in the same direction in a medium differ essentially in their
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2013
A wave that travels through stretched strings is known as
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2013
The mechanism of heat transfer from one point to another through the vibration of the molecules of the medium is
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2013
The rise or fall of a liquid in a narrow tube is because of the
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2013
What will happen to the boiling point of pure water when it is heated in a place 30m below sea level?
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2013
Total internal reflection will not occur when light travels from
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2013
A ray of light passing through the centre of curvature of a concave mirror is reflected by the mirror at
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2013
A man 1.5m tall is standing 3m in front of a pinhole camera whose distance between the hole and the screen is 0.1m. What is the height of the image of the man on the screen?
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2013
If a sonometer has a fundamental frequency of 450HZ, what is the frequency of the fifth overtone?
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2013
What is the velocity of sound at 100 oC if the velocity of sound at 0 oC is 340ms -1?
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2013
A cell of emf 1.5V is connected in series with a 1Ω resistor and a current of 0.3A flows through the resistor. Find the internal resistance of the cell
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2013
Capacitors are used in the induction coil to
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2013
Calculate the force acting on an electron of charge 1.5 x 10-19C placed in an electric field of intensity 105Vm-1
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2013
The angle of deviation of light of various colours passing through a triangular prism increases in the order
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2013
If the linear magnification of the objective and eyepiece convex lenses of a compound microscope are 4 and 7 respectively. Calculate the angular magnification of the microscope
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2013
To convert a galvanometer to a voltmeter, a
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2013
When a charge moves through an electric circuit in the direction of an electric force, it
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2013
An electric device is rated 2000W, 250V. Calculate the maximum current it can take
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2013
A house has ten 40W and five 100W bulbs. How much will it cost the owner of the house to keep them lit for 10 hours if the cost of a unit is 5N?