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

In hydrogen atom, an electron is revolving in the orbit of radius $0.53 \mathop {\rm{A}}\limits^{\rm{o}} $ with $6.6 \times 10^{15} \mathrm{rps}$. Magnetic field produced at the centre of the orbit is

A

$0.125 \mathrm{~Wb} / \mathrm{m}^2$

B

$1.25 \mathrm{~Wb} / \mathrm{m}^2$

C

$12.5 \mathrm{~Wb} / \mathrm{m}^2$

D

$125 \mathrm{~Wb} / \mathrm{m}^2$

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

To get an output 1 from the circuit shown in the figure, the input must be

VITEEE 2025 Physics - Semiconductor Devices and Logic Gates Question 1 English
A

$A=0, B=1, C=0$

B

$A=1, B=0, C=0$

C

$A=1, B=0, C=1$

D

$A=1, B=1, C=0$

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

When the ideal monoatomic gas is heated at constant pressure fraction of heat energy supplied which increases the internal energy of gas is

A

$\frac{2}{5}$

B

$\frac{3}{5}$

C

$\frac{3}{7}$

D

$\frac{3}{4}$

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

Two identical long solid cylinders are used to conduct heat from temperature $T_1$ to temperature $T_2$. Originally, the cylinders are connected in series and the rate of heat transfer is $H$. If the cylinders are connected in parallel, then the rate of heat transfer will be

A

$\frac{\mathrm{H}}{4}$

B

2 H

C

4 H

D

8 H

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