1
JEE Advanced 2021 Paper 1 Online
Numerical
+2
-0
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A projectile is thrown from a point O on the ground at an angle 45$$^\circ$$ from the vertical and with a speed 5$$\sqrt 2 $$ m/s. The projectile at the highest point of its trajectory splits into two equal parts. One part falls vertically down to the ground, 0.5 s after the splitting. The other part, t seconds after splitting, falls to the ground at a distance x meters from the point O. The acceleration due to gravity g = 10 m/s2.

The value of x is _______________.
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2
JEE Advanced 2021 Paper 1 Online
Numerical
+2
-0
Change Language
In the circuit shown below, the switch S is connected to position P for a long time so that the charge on the capacitor becomes q1 $$\mu$$C. Then S is switched to position Q. After a long time, the charge on the capacitor is q2 $$\mu$$C.

JEE Advanced 2021 Paper 1 Online Physics - Capacitor Question 9 English

The magnitude of q1 is ________________.
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3
JEE Advanced 2021 Paper 1 Online
Numerical
+2
-0
Change Language
In the circuit shown below, the switch S is connected to position P for a long time so that the charge on the capacitor becomes q1 $$\mu$$C. Then S is switched to position Q. After a long time, the charge on the capacitor is q2 $$\mu$$C.

JEE Advanced 2021 Paper 1 Online Physics - Capacitor Question 8 English

The magnitude of q2 is ________________.
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4
JEE Advanced 2021 Paper 1 Online
Numerical
+2
-0
Change Language
Two point charges $$-$$Q and +Q/$$\sqrt 3 $$ are placed in the xy-plane at the origin (0, 0) and a point (2, 0), respectively, as shown in the figure. This results in an equipotential circle of radius R and potential V = 0 in the xy-plane with its center at (b, 0). All lengths are measured in meters.

JEE Advanced 2021 Paper 1 Online Physics - Electrostatics Question 25 English

The value of R is __________ meter.
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