Match List I (Electromagnetic wave type) with List II (Its association/application) and select the correct option from the choices given below the lists.

Codes:
$A B C D$

The forward biased diode connection is

Topic:

Semiconductor Electronics: Materials, Devices and Simple Circuits

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2014

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A conductor lies along the

z

-axis at

- 1.5 \leq z < 1.5 m

and carries a fixed current of

10.0 A

- a_{z}

direction (see figure). For a field

B = 3.0 \times 1 0^{- 4} e^{- 0.2 x} a_{y} T

, find the power required to move the conductor at constant speed to

x = 2.0 m, y = - 0

5 \times 1 0^{- 3} s

. Assume parallel motion along the

x

-axis.

$1.57 W$
$2.97 W$
$14.85 W$
$29.7 W$

Topic:

Moving Charges and Magnetism

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2014

View solution

, of plane polarised light with mutually perpendicular planes of polarisation are seen through a polaroid. From the position, when the beam

Two beams,

A

and

B

A

has maximum intensity (and beam

B

has zero intensity), a rotation of polaroid through

3 0^{\circ}

makes the two beams appear equally bright. If the initial intensities of the two beams are

I_{A}

and

I_{B}

respectively, then

I_{A} / I_{B}

equals
(a) 3
(b)

3/2

1/3

Topic:

Wave Optics

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2014

View solution

During the propagation of electromagnetic waves in a medium,
(a) electric energy density is double of the magnetic energy density
(b) electric energy density is half of the magnetic energy density
(c) electric energy density is equal to the magnetic energy density
(d) Both electric and magnetic energy densities are zero

Topic:

Electromagnetic Waves

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2014

View solution

Practice questions from Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Which of the following are not electromagnetic waves?
(a) cosmic rays
(b)

γ

-rays
(c)

β

-rays
(d) X-rays

Topic:

Electromagnetic Waves

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2002

View 2 solutions

An electromagnetic wave of frequency

v = 3.0 MHz

passes from vacuum into a dielectric medium with permittivity

ε = 4.0

. Then, (a) wavelength is doubled and the frequency remains unchanged (b) wavelength is doubled and frequency becomes half (c) wavelength is halved and frequency remains unchanged (d) wavelength and frequency both remain unchanged

Topic:

Electromagnetic Waves

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2004

View solution

Infrared radiations are detected by
(a) spectrometer
(b) pyrometer
(c) nanometre
(d) photometer

Topic:

Electromagnetic Waves

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2002

View solution

A plane electromagnetic wave travels in free space along the

x

-direction. The electric field component of the wave at a particular point of space and time is

E = 6 Vm^{- 1}

along

y

-direction. Its corresponding magnetic field component,

B

would be
(a)

2 \times 1 0^{- 8}

T along

z

- direction
(b)

6 \times 1 0^{- 8} T

along

x

- direction
(c)

6 \times 1 0^{- 8} T

along

z

- direction
(d)

2 \times 1 0^{- 8}

T along

y

- direction

Topic:

Electromagnetic Waves

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2019

View 2 solutions

Practice questions from Electromagnetic Waves in the same exam

A plane electromagnetic wave propagating along y-direction can have the following pair of electric field

(E)

and magnetic field (

B

) components.

$E_{y}, B_{x}$ or $E_{x}, B_{y}$
$E_{x}, B_{z}$ or $E_{z}, B_{x}$
$E_{x}, B_{y}$ or $E_{y}, B_{x}$
$E_{y}, B_{y}$ or $E_{z}, B_{z}$

Topic:

Electromagnetic Waves

Exam:

JEE Mains 2021 Mar 18 Shift 2

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A linearly polarized electromagnetic wave in vacuum is

E = 3.1 cos [(1.8) z - (5.4 \times 1 0^{6}) t] \hat{i} N / C

is incident normally on a perfectly reflecting wall at

z = a

. Choose the correct option.

The frequency of electromagnetic wave is $54 \times 1 0^{4} Hz$ .
The reflected wave will be $3.1 cos [(1.8) z + (5.4 \times 1 0^{6}) t] \hat{i} N / C$
The transmitted wave will be $3.1 cos [(1.8) z - (5.4 \times 1 0^{6}) t] \hat{i} N / C$
The wavelength is $5.4 m$ .

Topic:

Electromagnetic Waves

Exam:

JEE Mains 2021 July 25 Shift 1

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The electric field in a plane electromagnetic wave is given by

E = 200 cos [(\frac{0.5 \times 1 0 ^{3}}{m}) x - (1.5 \times 1 0^{11} \frac{rad}{s} \times t)] \frac{v}{m} \hat{j}

. If this wave falls normally on a perfectly reflecting surface having an area of

100 cm^{2}

. If the radiation pressure exerted by the E. M. wave on the surface during a 10 minute exposure is

\frac{x}{1 0 ^{9}} \frac{N}{m ^{2}}

. Find the value of x.

Topic:

Electromagnetic Waves

Exam:

JEE Mains 2021 Aug 26 Shift 1

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Electric field in a plane electromagnetic wave is given by

E = 50 sin (500 x - 10 \times 1 0^{10} t) V / m

. The velocity of an electromagnetic wave in this medium is : (Given c = speed of light in vacuum)

$\frac{2}{3} c$
$c$
$\frac{c}{2}$
$\frac{3}{2} c$

Topic:

Electromagnetic Waves

Exam:

JEE Mains 2021 Aug 27 Shift 1

View 6 solutions

Practice more questions from Electromagnetic Waves

An electromagnetic radiation has an energy of

13.2 keV

. Then the radiation belongs to the region of

Visible light
Ultraviolet
Infrared
X-ray

Topic:

Electromagnetic Waves

View solution

Two large vertical and parallel metal plates having a separation of

1 cm

are connected to a

DC

voltage source of potential difference

X

. A proton is released at rest midway between the two plates. It is found to move at

4 5^{\circ}

to the vertical just after release. Then

X

is nearly

$1 \times 1 0^{- 5} V$
$1 \times 1 0^{- 7} V$
$1 \times 1 0^{- 9} V$
$1 \times 1 0^{- 10} V$

Topic:

Electromagnetic Waves

Exam:

JEE Advanced 2012

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A point source of electromagnetic radiation has an average power output of

1500 W

. What will be the maximum value of electric field at a distance of

3 m

from this sources in

Vm^{- 1}

Topic:

Electromagnetic Waves

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solar energy. Then, the amplitudes of electric field of radiation is

If the earth receives

2 cal min^{- 1} cm^{- 2}

(V / m)

$102.3$
377
150
200

Topic:

Electromagnetic Waves

Book:

Master Resource Book in JEE Main Physics (Arihant)

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Practice questions on similar concepts asked by Filo students

son A metal plate of area 103 cm² rests on a layer of oil 6 mm thick. A tangential force 10-2 N is applied on it to move it with a constant velocity of 6 cms-¹. The coefficient of viscosity of the liquid is (b) 0.5 poise (d) 0.9 poise (a) 0.1 poise (c) 0.7 poise P. W

Topic:

Mechanics

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Question : 8 In the given figure, reading of the non-ideal voltmeter is

40 V

and that of the non-ideal ammeter is

5 A

. The value of resistance

R

should be. Options: Equal to

8Ω

Greater than

8Ω

Less than

8Ω

Greater or less than

8Ω

depending on material of

R

Topic:

Electrostats

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6. Two wires shown in the figure are connected in a series circuit and the same amount of current of 10 A passes through both, but in apposite directions. Separation between the two wires is 8

mm

. The length

AB

S = 22 cm

. Obtain the direction and magnitude of the magnetic field due to current in wire 2 on the section AB of wire 1. Also obtain the magnitude and direction of the force on wire

1. l e f t [m u_{0} = 4 π \times 1 0^{- 7} T . m / A i g h t]

Topic:

Magnetism, EMI & AC

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