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Question 1 of 5
1. Question
4 pointsArrange the following electromagnetic radiations per quantum in the order of increasing energy: [JEE (Main) 2016]
A : Blue light
B : Yellow light
C : X-ray
D : RadiowaveCorrect
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Question 2 of 5
2. Question
4 pointsOut of the following options which one can be used to produce a propagating electromagnetic wave? [NEET 2016]
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Question 3 of 5
3. Question
4 pointsA red LED emits light at 0.1 watt uniformly around it. The amplitude of the electric field of the light at a distance of 1 m from the diode is [JEE Main 2015]
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Question 4 of 5
4. Question
4 pointsThe electric field of an electromagnetic wave in free space is given by
,
where t and x are in seconds and metres respectively. It can be inferred that(a) The wavelength λ is 188.4 m
(b) The wave number k is 0.33 rad/m
(c) The wave amplitude is 10 V/m
(d) The wave is propagating along +x direction
Which one of the following pairs of statements is correct? [CBSE AIPMT 2010]
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Question 5 of 5
5. Question
4 pointsThe electric and magnetic field of an electromagnetic wave are [CBSE AIPMT 2007]
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