1
JEE Main 2021 (Online) 16th March Morning Shift
Numerical
+4
-1
In the logic circuit shown in the figure, if input A and B are 0 to 1 respectively, the output at Y would be 'x'.
The value of x is ____________.
![JEE Main 2021 (Online) 16th March Morning Shift Physics - Semiconductor Question 107 English](https://imagex.cdn.examgoal.net/1kmilvw8i/49020dfc-ff39-47ca-a290-d9acda0a742d/490a3d20-89f6-11eb-9c26-d9a423ffb060/file-1kmilvw8j.jpg)
The value of x is ____________.
![JEE Main 2021 (Online) 16th March Morning Shift Physics - Semiconductor Question 107 English](https://imagex.cdn.examgoal.net/1kmilvw8i/49020dfc-ff39-47ca-a290-d9acda0a742d/490a3d20-89f6-11eb-9c26-d9a423ffb060/file-1kmilvw8j.jpg)
Your input ____
2
JEE Main 2021 (Online) 16th March Morning Shift
Numerical
+4
-1
A ball of mass 10 kg moving with a velocity $$10\sqrt 3 $$ m s$$-$$1 along X-axis, hits another ball of mass 20 kg which is at rest. After collision, the first ball comes to rest and the second one disintegrates into two equal pieces. One of the pieces starts moving along Y-axis at a speed of 10 m/s. The second piece starts moving at a speed of 20 m/s at an angle $$\theta$$ (degree) with respect to the X-axis.
The configuration of pieces after collision is shown in the figure.
The value of $$\theta$$ to the nearest integer is ____________.
![JEE Main 2021 (Online) 16th March Morning Shift Physics - Center of Mass and Collision Question 54 English](https://imagex.cdn.examgoal.net/1kmilxf7b/7b5e4bd5-6286-471b-aaa1-fa154f399375/73802470-89f6-11eb-9c26-d9a423ffb060/file-1kmilxf7c.jpg)
The configuration of pieces after collision is shown in the figure.
The value of $$\theta$$ to the nearest integer is ____________.
![JEE Main 2021 (Online) 16th March Morning Shift Physics - Center of Mass and Collision Question 54 English](https://imagex.cdn.examgoal.net/1kmilxf7b/7b5e4bd5-6286-471b-aaa1-fa154f399375/73802470-89f6-11eb-9c26-d9a423ffb060/file-1kmilxf7c.jpg)
Your input ____
3
JEE Main 2021 (Online) 16th March Morning Shift
Numerical
+4
-1
The first three spectral lines of H-atom in the Balmer series are
given $$\lambda$$1, $$\lambda$$2, $$\lambda$$3 considering the Bohr atomic model, the wave lengths of first and third spectral lines $$\left( \frac{\lambda_{1} }{\lambda_{3} } \right) $$ are related by a factor of approximately 'x' $$\times$$ 10$$-$$1.
The value of x, to the nearest integer, is _________.
given $$\lambda$$1, $$\lambda$$2, $$\lambda$$3 considering the Bohr atomic model, the wave lengths of first and third spectral lines $$\left( \frac{\lambda_{1} }{\lambda_{3} } \right) $$ are related by a factor of approximately 'x' $$\times$$ 10$$-$$1.
The value of x, to the nearest integer, is _________.
Your input ____
4
JEE Main 2021 (Online) 16th March Morning Shift
Numerical
+4
-1
Consider a frame that is made up of two thin massless rods AB and AC as shown in the figure. A vertical force $$\overrightarrow P $$ of magnitude 100 N is applied at point A of the frame.
![JEE Main 2021 (Online) 16th March Morning Shift Physics - Rotational Motion Question 98 English](https://app-content.cdn.examgoal.net/fly/@width/image/1kx3uxjh1/cd5c89a0-3a83-42ab-8e82-123f4cfd13da/48636050-5ba0-11ec-a5b4-139d631bd0b4/file-1kx3uxjh2.png?format=png)
Suppose the force is $$\overrightarrow P $$ resolved parallel to the arms AB and AC of the frame.
The magnitude of the resolved component along the arm AC is xN.
The value of x, to the nearest integer, is ___________.
[Given : sin(35$$^\circ$$) = 0.573, cos(35$$^\circ$$) = 0.819
sin(110$$^\circ$$) = 0.939, cos(110$$^\circ$$) = $$-$$ 0.342 J
![JEE Main 2021 (Online) 16th March Morning Shift Physics - Rotational Motion Question 98 English](https://app-content.cdn.examgoal.net/fly/@width/image/1kx3uxjh1/cd5c89a0-3a83-42ab-8e82-123f4cfd13da/48636050-5ba0-11ec-a5b4-139d631bd0b4/file-1kx3uxjh2.png?format=png)
Suppose the force is $$\overrightarrow P $$ resolved parallel to the arms AB and AC of the frame.
The magnitude of the resolved component along the arm AC is xN.
The value of x, to the nearest integer, is ___________.
[Given : sin(35$$^\circ$$) = 0.573, cos(35$$^\circ$$) = 0.819
sin(110$$^\circ$$) = 0.939, cos(110$$^\circ$$) = $$-$$ 0.342 J
Your input ____
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