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Exam Details

JEE Main 2015 (Online) 10th April Morning Slot

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Questions 1
Duration 60 mins
Package IIT-JEE Main - Previous Year Papers

Paper pattern & analysis

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Showing all 1 questions in this paper.

Subject distribution

Physics
1 Qs

Topic distribution

Electricity
1 Qs

Subtopic distribution

Electromagnetic Waves
1 Qs

Difficulty distribution

Medium 1 100%

Question type distribution

Multiple Choices 1 100%

Sample questions from this paper

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1
2015 · Physics · Electricity · Electromagnetic Waves
JEE Main 2015 (Online) 10th April Morning Slot
An electromagnetic wave travelling in the x-direction has frequency of 23 \(\times\) 1014 Hz and electric field amplitude of 27 Vm\(-\)1. From the options given below, which one describes the magnetic field for this wave ?
A
\(\overrightarrow B\) (x, t) = (3 \(\times\) 10\(-\)8T) \(\widehat j\)

sin [ 2\(\pi\) (1.5 \(\times\) 10\(-\)8x \(-\) 2 \(\times\) 1014t)]
B
\(\overrightarrow B\) (x, t) = (9 \(\times\) 10\(-\)8T) \(\widehat k\)

sin [ 2\(\pi\) (1.5 \(\times\) 10\(-\)6x \(-\) 2 \(\times\) 1014t)]
C
\(\overrightarrow B\) (x, t) = (9 \(\times\) 10\(-\)8T) \(\widehat i\)

sin [ 2\(\pi\) (1.5 \(\times\) 10\(-\)8x \(-\) 2 \(\times\) 1014t)]
D
\(\overrightarrow B\) (x, t) = (9 \(\times\) 10\(-\)8T) \(\widehat j\)

sin [(1.5 \(\times\) 10\(-\)6 x \(-\) 2 \(\times\) 1014t)]