1
JEE Main 2020 (Online) 6th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Identify the correct output signal Y in the given combination of gates (as shown) for the given inputs A and B. JEE Main 2020 (Online) 6th September Morning Slot Physics - Semiconductor Question 140 English
A
JEE Main 2020 (Online) 6th September Morning Slot Physics - Semiconductor Question 140 English Option 1
B
JEE Main 2020 (Online) 6th September Morning Slot Physics - Semiconductor Question 140 English Option 2
C
JEE Main 2020 (Online) 6th September Morning Slot Physics - Semiconductor Question 140 English Option 3
D
JEE Main 2020 (Online) 6th September Morning Slot Physics - Semiconductor Question 140 English Option 4
2
JEE Main 2020 (Online) 6th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
A particle of charge q and mass m is moving with a velocity $$ - v\widehat i$$ (v $$ \ne $$ 0) towards a large screen placed in the Y - Z plane at a distance d. If there is a magnetic field $$\overrightarrow B = {B_0}\widehat k$$ , the maximum value of v for which the particle will not hit the screen is :
A
$${{2qd{B_0}} \over m}$$
B
$${{qd{B_0}} \over {3m}}$$
C
$${{qd{B_0}} \over {2m}}$$
D
$${{qd{B_0}} \over {m}}$$
3
JEE Main 2020 (Online) 6th September Morning Slot
Numerical
+4
-0
Change Language
Two bodies of the same mass are moving with the same speed, but in different directions in a plane. They have a completely inelastic collision and move together thereafter with a final speed which is half of their initial speed. The angle between the initial velocities of the two bodies (in degree) is ________.
Your input ____
4
JEE Main 2020 (Online) 6th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Molecules of an ideal gas are known to have three translational degrees of freedom and two rotational degrees of freedom.The gas is maintained at a temperature of T. The total internal energy, U of a mole of this gas, and the value of
$$\gamma \left( { = {{{C_p}} \over {{C_v}}}} \right)$$ are given, respectively by:
A
U = $${5 \over 2}RT$$ and $$\gamma = {7 \over 5}$$
B
U = 5RT and $$\gamma = {6 \over 5}$$
C
U = 5RT and $$\gamma = {7 \over 5}$$
D
U = $${5 \over 2}RT$$ and $$\gamma = {6 \over 5}$$
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