1
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The $$rms$$ value of the electric field of the light coming from the Sun is $$720$$ $$N/C.$$ The average total energy density of the electromagnetic wave is
A
$$4.58 \times {10^{ - 6}}\,J/{m^3}$$
B
$$6.37 \times {10^{ - 9}}\,J/{m^3}$$
C
$$81.35 \times {10^{ - 12}}\,J/{m^3}$$
D
$$3.3 \times {10^{ - 3}}\,J/{m^3}$$
2
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
An electromagnetic wave of frequency $$v=3.0$$ $$MHz$$ passes from vacuum into a dielectric medium with permittivity $$ \in = 4.0.$$ Then
A
wave length is halved and frequency remains unchanged
B
wave length is doubled and the frequency becomes half
C
wave length is doubled and the frequency remains unchanged
D
wave length and frequency both remain unchanged.
3
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
A radiation of energy $$E$$ falls normally on a perfectly reflecting surface. The momentum transferred to the surface is
A
$$Ec$$
B
$$2E/c$$
C
$$E/c$$
D
$$E/{c^2}$$
4
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
Electromagnetic waves are transverse in nature is evident by
A
polarization
B
interference
C
reflection
D
diffraction
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