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BCECE
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Physics
List of top Physics Questions on Electromagnetic waves asked in BCECE
Instantaneous displacement current of 1.0A in the space between the parallel plates of 1μF capacitor can be established by changing the potential difference of:
BCECE - 2023
BCECE
Physics
Electromagnetic waves
A plane electromagnetic wave of wave interface 10W/m
2
strikes a small mirror of area 20 cm
2
, held perpendicular to the approaching wave. The radiation force on the mirror will be:
BCECE - 2022
BCECE
Physics
Electromagnetic waves
Two waves are represented by
$y_1 = 4 \sin \, 404 \pi t$
and
$y_2 = 3 \sin \, 400 \pi t.$
Then
BCECE - 2009
BCECE
Physics
Electromagnetic waves
In the propagation of light waves, the angle between the direction of vibration and plane of polarization is
BCECE - 2008
BCECE
Physics
Electromagnetic waves
Compressional wave pulses are sent to the bottom of sea from a ship and the echo is heard after
$2 s$
. If bulk modulus of elasticity of water is
$2 \times 10^{9} \,N / m ^{2}$
and mean temperature is
$4^{\circ} C$
, the depth of the sea will be
BCECE - 2007
BCECE
Physics
Electromagnetic waves
The magnetic field amplitude of an electromagnetic wave is
$ 2\times {{10}^{-7}}T $
, Its electric field amplitude, if the wave is travelling in free space is:
BCECE - 2006
BCECE
Physics
Electromagnetic waves