BCECE SERIES Physics
Electromagnetic Waves
6 previous year questions.
Volume: 6 Ques
Yield: Medium
High-Yield Trend
1
2023 1
2022 1
2009 1
2008 1
2007 1
2006 Chapter Questions 6 MCQs
01
PYQ 2006
medium
physics ID: bcece-20
The magnetic field amplitude of an electromagnetic wave is , Its electric field amplitude, if the wave is travelling in free space is:
1
2
3
4
none of these
02
PYQ 2007
medium
physics ID: bcece-20
Compressional wave pulses are sent to the bottom of sea from a ship and the echo is heard after . If bulk modulus of elasticity of water is and mean temperature is , the depth of the sea will be
1
1014 m
2
1414 m
3
2828 m
4
none of these
03
PYQ 2008
medium
physics ID: bcece-20
In the propagation of light waves, the angle between the direction of vibration and plane of polarization is
1
2
3
4
04
PYQ 2009
medium
physics ID: bcece-20
Two waves are represented by and Then
1
beat frequency is 4 Hz and the ratio of maximum to minimum intensity is 49 : 1
2
beat frequency is 2 Hz and the ratio of maximum to minimum intensity is 49 : 1
3
beat frequency is 2 Hz and the ratio of maximum to minimum intensity is 1 : 49
4
beat frequency is 4 Hz and the ratio of maximum to minimum intensity is 1 : 49
05
PYQ 2022
hard
physics ID: bcece-20
A plane electromagnetic wave of wave interface 10W/m2 strikes a small mirror of area 20 cm2, held perpendicular to the approaching wave. The radiation force on the mirror will be:
1
6.6 1011 N
2
1.33 10-10 N
3
1.33 10-11 N
4
6.6 110-10 N
06
PYQ 2023
medium
physics ID: bcece-20
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:
1
10-6 V/S
2
10-8 V/S
3
10-6 V/S
4
10-8 V/S