1
JEE Main 2023 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The output waveform of the given logical circuit for the following inputs A and B as shown below, is :

JEE Main 2023 (Online) 30th January Morning Shift Physics - Semiconductor Question 31 English

A
JEE Main 2023 (Online) 30th January Morning Shift Physics - Semiconductor Question 31 English Option 1
B
JEE Main 2023 (Online) 30th January Morning Shift Physics - Semiconductor Question 31 English Option 2
C
JEE Main 2023 (Online) 30th January Morning Shift Physics - Semiconductor Question 31 English Option 3
D
JEE Main 2023 (Online) 30th January Morning Shift Physics - Semiconductor Question 31 English Option 4
2
JEE Main 2023 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

As per the given figure, a small ball P slides down the quadrant of a circle and hits the other ball Q of equal mass which is initially at rest. Neglecting the effect of friction and assume the collision to be elastic, the velocity of ball Q after collision will be :

(g = 10 m/s2)

JEE Main 2023 (Online) 30th January Morning Shift Physics - Center of Mass and Collision Question 15 English

A
0.25 m/s
B
4 m/s
C
0
D
2 m/s
3
JEE Main 2023 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The charge flowing in a conductor changes with time as $$\mathrm{Q}(\mathrm{t})=\alpha \mathrm{t}-\beta \mathrm{t}^{2}+\gamma \mathrm{t}^{3}$$. Where $$\alpha, \beta$$ and $$\gamma$$ are constants. Minimum value of current is :

A
$$\beta-\frac{\alpha^{2}}{3 \gamma}$$
B
$$\alpha-\frac{3 \beta^{2}}{\gamma}$$
C
$$\alpha-\frac{\beta^{2}}{3 \gamma}$$
D
$$\alpha-\frac{\gamma^{2}}{3 \beta}$$
4
JEE Main 2023 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Heat is given to an ideal gas in an isothermal process.

A. Internal energy of the gas will decrease.

B. Internal energy of the gas will increase.

C. Internal energy of the gas will not change.

D. The gas will do positive work.

E. The gas will do negative work.

Choose the correct answer from the options given below :

A
B and D only
B
C and E only
C
A and E only
D
C and D only
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