1
VITEEE 2025
MCQ (Single Correct Answer)
+4
-1

A laser beam of cross-sectional area $5 \mathrm{~mm}^2$ is 30 mW . Find the magnitude of maximum electric field in this electromagnetic wave.

A

$2.1 \mathrm{kV} / \mathrm{m}$

B

$1.4 \mathrm{kV} / \mathrm{m}$

C

$2 \mathrm{kV} / \mathrm{m}$

D

$0.5 \mathrm{kV} / \mathrm{m}$

2
VITEEE 2025
MCQ (Single Correct Answer)
+4
-1

A body of mass $M$ is moving with a uniform speed of $10 \mathrm{~m} / \mathrm{s}$ on frictionless surface under the influence of two forces $F_1$ and $F_2$. The net power of the system is

VITEEE 2025 Physics - Work, Energy and Power Question 1 English
A

$10 F_1 F_2 M$

B

$10\left(F_1+F_2\right) M$

C

$\left(F_1+F_2\right) M$

D

zero

3
VITEEE 2025
MCQ (Single Correct Answer)
+4
-1

An object is projected from surface of Earth with a kinetic energy twice that of escape energy ' $K$ ', from surface of Earth. It's kinetic energy when it reaches far away from Earth is

A

K

B

$2 K$

C

$K / 2$

D

0

4
VITEEE 2025
MCQ (Single Correct Answer)
+4
-1

If the Earth is assumed to be a sphere of uniform mass density and its weight on the surface is 200 N , then the weight of the body at a depth halfway to the Earth's center will be

A

50 N

B

25 N

C

75 N

D

100 N

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