1
TS EAMCET 2022 (Online) 19th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

The magnetic flux through the triangular loop shown in the figure below

TS EAMCET 2022 (Online) 19th July Evening Shift Physics - Electromagnetic Induction Question 5 English

Where a uniform magnetic field of strength 2 T points perpendicularly into the plane of the triangle is

A

$10^{-4} \mathrm{~Wb}$

B

$2 \times 10^{-4} \mathrm{~Wb}$

C

Wb

D

2 Wb

2
TS EAMCET 2022 (Online) 19th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

The $Q$ value of a series $L-C-R$ circuit with $L=2 \mathrm{H}$, $C=32 \mu \mathrm{~F}, R=20 \Omega$ is

A

12.5

B

25.0

C

50.0

D

125.0

3
TS EAMCET 2022 (Online) 19th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

A laser beam has intensity $2.1 \times 10^{15} \mathrm{~W} / \mathrm{m}^2$. The amplitude of magnetic field in the beam in approximately is

A

1.4 T

B

4.2 T

C

1 T

D

1.5 T

4
TS EAMCET 2022 (Online) 19th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a photoelectric experiment, the wavelength of the light incident on the metal is changed from 200 nm to 400 nm . The decrease in the stopping potential is close to

[use $h c=1240 \mathrm{eV}$-nm, where $h=$ Planck's constant and $c$ is velocity of light]

A

3.1 V

B

2.8 V

C

4.2 V

D

1.2 V

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