1
JEE Main 2022 (Online) 27th June Evening Shift
+4
-1

The distance of the Sun from earth is 1.5 $$\times$$ 1011 m and its angular diameter is (2000) s when observed from the earth. The diameter of the Sun will be :

A
2.45 $$\times$$ 1010 m
B
1.45 $$\times$$ 1010 m
C
1.45 $$\times$$ 109 m
D
0.14 $$\times$$ 109 m
2
JEE Main 2022 (Online) 27th June Evening Shift
+4
-1

Four spheres each of mass m from a square of side d (as shown in figure). A fifth sphere of mass M is situated at the centre of square. The total gravitational potential energy of the system is :

A
$$- {{Gm} \over d}\left[ {(4 + \sqrt 2 )m + 4\sqrt 2 M} \right]$$
B
$$- {{Gm} \over d}\left[ {(4 + \sqrt 2 )M + 4\sqrt 2 m} \right]$$
C
$$- {{Gm} \over d}\left[ {3{m^2} + 4\sqrt 2 M} \right]$$
D
$$- {{Gm} \over d}\left[ {6{m^2} + 4\sqrt 2 M} \right]$$
3
JEE Main 2022 (Online) 27th June Morning Shift
+4
-1

Given below are two statements :

Statement I : The law of gravitation holds good for any pair of bodies in the universe.

Statement II : The weight of any person becomes zero when the person is at the centre of the earth.

In the light of the above statements, choose the correct answer from the options given below.

A
Both Statement I and Statement II are true
B
Both Statement I and Statement II are false
C
Statement I is true but Statement II is false
D
Statement I is false but Statement II is true
4
JEE Main 2022 (Online) 26th June Evening Shift
+4
-1

Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : If we move from poles to equator, the direction of acceleration due to gravity of earth always points towards the center of earth without any variation in its magnitude.

Reason R : At equator, the direction of acceleration due to the gravity is towards the center of earth.

In the light of above statements, choose the correct answer from the options given below:

A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is NOT the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.
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Physics
Mechanics
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Modern Physics
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