Question Answers

At what depth below the surface of the earth acceleration due to gravity will be half of its value at 1600 km above the surface of the earth ? At what depth below the surface of the earth acceleration due to gravity will be half of its value at 1600 km above the surface of [...]

Water drops fall from a tap on the floor 5 m below at regular intervals of time, the first drop striking the floor when the fifth drop begins to fall. The height at which the third drop will be from ground the first drop striking the floor when the fifth drop begins to fall. The [...]

The angular velocity of rotation of star (of mass M and radius R) at which the matter will start to escaping from its equator is The angular velocity of rotation of star (of mass M and radius R) at which the matter will start to escaping from its equator is September 19, 2020 Category: Arihant [...]

The average velocity of a body moving with uniform acceleration after travelling a distance of 3.06 m is 0.34 m/s. If the change in velocity of the body is 0.18 m/s during this time, its its The average velocity of a body moving with uniform acceleration after travelling a distance of 3.06 m is 0.34 [...]

A moving car possesses average velocities of 5 m/s, 10 m/s, and 15 m/s in the first, second, and third seconds, respectively. What is the total distance covered by the car in 10 m/s A moving car possesses average velocities of 5 m/s and 15 m/s in the first and third seconds respectively. What is [...]

A group of N cells whose emf varies directly with the internal resistance as per the equation En = 1.5 rn are connected as shown in the figure. The current I in the circuit is A group of N cells whose emf varies directly with the internal resistance as per the equation En = 1.5 [...]

The height above the surface of the earth where acceleration due to gravity is 1/64 of its value at surface of the earth is approximately. The height above the surface of the earth where acceleration due to gravity is 1/64 of its value at surface of the earth is approximately. September 19, 2020 Category: Arihant [...]

A mass M is split into two parts m and (M−m), which are, then separated by a certain distance. What ratio of m/M maximizes the gravitational force between the two parts ? A mass M is split into two parts m and (M−m) then separated by a certain distance. What ratio of m/M maximizes the [...]

The figure here shows a portion of a circuit . What are the magnitude and direction of the current i in the lower right hand wire? The figure here shows a portion of a circuit . What are the magnitude and direction of the current i in the lower right hand wire? September 19, 2020 [...]

If M is the mass of the earth and R its radius, the ratio of the gravitational acceleration and the gravitational constant is If M is the mass of the earth and R its radius the ratio of the gravitational acceleration and the gravitational constant is September 19, 2020 Category: Arihant Physics by D.C Pandey [...]