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1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Match List - I with List - II

List - I
(Electromagnetic waves)		 List - II
(Wavelength)
(a) AM radio waves (i) $${10^{ - 10}}$$ m
(b) Microwaves (ii) $${10^2}$$ m
(c) Infrared radiations (iii) $${10^{ - 2}}$$ m
(d) X-rays (iv) $${10^{ - 4}}$$ m

Choose the correct answer from the options given below

A
(a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
B
(a) - (iii), (b) - (ii), (c) - (i), (d) - (iv)
C
(a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)
D
(a) - (ii), (b) - (iii), (c) - (iv), (d) - (i)
2
NEET 2021
MCQ (Single Correct Answer)
+4
-1
For a plane electromagnetic wave propagating in x-direction, which one of the following combination gives the correct possible directions for electric field (E) and magnetic field (B) respectively?
A
$$ - \widehat j + \widehat k, - \widehat j + \widehat k$$
B
$$ \widehat j + \widehat k, \widehat j + \widehat k$$
C
$$ - \widehat j + \widehat k, - \widehat j - \widehat k$$
D
$$\widehat j + \widehat k, - \widehat j - \widehat k$$
3
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
The ratio of contributions made by the electric field and magnetic field components to the intensity of and electromagnetic wave is : (c = speed of electromagnetic waves)
A
1 : 1
B
1 : c
C
1 : c2
D
c : 1
4
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Which colour of the light has the longest wavelength?
A
blue
B
violet
C
red
D
green
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