1
JEE Main 2022 (Online) 26th June Morning Shift
+4
-1

The variation of acceleration due to gravity (g) with distance (r) from the center of the earth is correctly represented by :

(Given R = radius of earth)

A
B
C
D
2
JEE Main 2022 (Online) 25th June Morning Shift
+4
-1

The height of any point P above the surface of earth is equal to diameter of earth. The value of acceleration due to gravity at point P will be : (Given g = acceleration due to gravity at the surface of earth).

A
g/2
B
g/4
C
g/3
D
g/9
3
JEE Main 2022 (Online) 24th June Evening Shift
+4
-1

The distance between Sun and Earth is R. The duration of year if the distance between Sun and Earth becomes 3R will be :

A
$$\sqrt 3$$ years
B
3 years
C
9 years
D
3$$\sqrt 3$$ years
4
JEE Main 2022 (Online) 24th June Morning Shift
+4
-1

The approximate height from the surface of earth at which the weight of the body becomes $${1 \over 3}$$ of its weight on the surface of earth is :

[Radius of earth R = 6400 km and $$\sqrt 3$$ = 1.732]

A
3840 km
B
4685 km
C
2133 km
D
4267 km
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Modern Physics
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