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A uniform rod of length l is kept vertically on a rough horizontal surface at x = 0. It is rotated slightly and released. When the rod finally falls on the horizontal surface, the lower end will remain at
26
Nov
A uniform rod of length l is kept vertically on a rough horizontal surface at x = 0. It is rotated slightly and released. When the rod finally falls on the horizontal surface, the lower end will remain at A uniform rod of length l is kept vertically on a rough horizontal surface at x [...]
A force F=(2i^+j^+3k^) N acts on a particle of mass 1 kg for 2s. If initial velocity of particle is u=(2j^+i^m/s. Speed of particle at the end of 2s will be
26
Nov
A force F=(2i^+j^+3k^) N acts on a particle of mass 1 kg for 2s. If initial velocity of particle is u=(2j^+i^m/s. Speed of particle at the end of 2s will be A force F=(2i^+j^+3k^) N acts on a particle of mass 1 kg for 2s. If initial velocity of particle is u=(2j^+i^m/s. Speed of particle [...]
From a circular disc of radius R, a square is cut out with a radius as its diagonal. The distance of the center of the mass of of the remainder from the center of the disc is
26
Nov
From a circular disc of radius R, a square is cut out with a radius as its diagonal. The distance of the center of the mass of of the remainder from the center of the disc is a square is cut out with a radius as its diagonal. The distance of the center of the [...]
Assertion : The atoms of different elements having same mass number but different atomic number are known as isobars. Reason : The sum of protons and neutrons , in the isobars is always different .
26
Nov
Assertion : The atoms of different elements having same mass number but different atomic number are known as isobars. Reason : The sum of protons and neutrons , in the isobars is always different . Assertion : The atoms of different elements having same mass number but different atomic number are known as isobars. Reason [...]
A particle of mass m is made to move with uniform speed v along the perimeter of a regular polygon of 2 n sides. The magnitude of impulse applied at each corner of the polygon is:
26
Nov
A particle of mass m is made to move with uniform speed v along the perimeter of a regular polygon of 2 n sides. The magnitude of impulse applied at each corner of the polygon is: A particle of mass m is made to move with uniform speed v along the perimeter of a regular [...]
The centre of mass of a non-uniform rod of length L whose mass per unit length λ=L/kx2 where k is a constant and x is the distance from end P is:
26
Nov
The centre of mass of a non-uniform rod of length L whose mass per unit length λ=L/kx2 where k is a constant and x is the distance from end P is: The centre of mass of a non-uniform rod of length L whose mass per unit length λ=L/kx2 where k is a constant and x [...]
The atomic weight of an element is 39. The number of neutrons in its nucleus is one more than the number of protons . The number of protons , neutrons and electrons respectively in its atom would be
26
Nov
The atomic weight of an element is 39. The number of neutrons in its nucleus is one more than the number of protons . The number of protons , neutrons and electrons respectively in its atom would be neutrons and electrons respectively in its atom would be The atomic weight of an element is 39. [...]
Two blocks of masses 3kg and 6kg respectivley are placed on a smooth horizontal surface. They are connected by a light spring of force constant k=200N/m . Initially the spring is unstretched. The indicated velocities are imparted to the blocks. Find the maximum extension of the spring.
26
Nov
Two blocks of masses 3kg and 6kg respectivley are placed on a smooth horizontal surface. They are connected by a light spring of force constant k=200N/m . Initially the spring is unstretched. The indicated velocities are imparted to the blocks. Find the maximum extension of the spring. Displacement of a particle of mass 2 kg [...]
A particle of mass 1 kg is projected at an angle of 30degree with horizontal with a velocity v=40 m/s. The change in linear momentum of the particle after time t=1 s will be: (g=10m/s2)
26
Nov
A particle of mass 1 kg is projected at an angle of 30degree with horizontal with a velocity v=40 m/s. The change in linear momentum of the particle after time t=1 s will be: (g=10m/s2) A particle of mass 1 kg is projected at an angle of 30degree with horizontal with a velocity v=40 m/s. [...]
The mass of neutron is nearly (a) 10 ^-23 kg (b) 10^-24 kg (c) 10^-26 kg (d) 10^-27 kg
26
Nov
The mass of neutron is nearly (a) 10 ^-23 kg (b) 10^-24 kg (c) 10^-26 kg (d) 10^-27 kg The mass of neutron is nearly (a) 10 ^-23 kg (b) 10^-24 kg (c) 10^-26 kg (d) 10^-27 kg November 26, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,