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A cube of mass m and density D is suspended from a point P by a spring of stiffness k. The system is kept inside a beaker filled with a liquid of density d. The elongation in the spring, assuming D gt d, is :
24
Aug
A cube of mass m and density D is suspended from a point P by a spring of stiffness k. The system is kept inside a beaker filled with a liquid of density d. The elongation in the spring, assuming D gt d, is : A cube of mass m and density D is suspended [...]
A particle of mass m is released from height h on smooth quarter circular fixed wedge. The horizontal surface AB following the circular path at bottom of wedge is rough with coefficient of friction mu between surface and m. Find the distance from bottom of wedge where the mass will stop.
23
Aug
A particle of mass m is released from height h on smooth quarter circular fixed wedge. The horizontal surface AB following the circular path at bottom of wedge is rough with coefficient of friction mu between surface and m. Find the distance from bottom of wedge where the mass will stop. An iron ball of [...]
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An iron ball of mass m ,
if e is the coefficient of restitution ,
is ,
is shifted by theta_(0) as shown so as to strike the vertical wail perpendicularly.The maximum angle made by the string with vertical after the first collision ,
suspended by a light inextensible string of length l from a fixed point O ,
An iron ball of mass m, suspended by a light inextensible string of length l from a fixed point O, is shifted by theta_(0) as shown so as to strike the vertical wail perpendicularly.The maximum angle made by the string with vertical after the first collision, if e is the coefficient of restitution, is
23
Aug
An iron ball of mass m, suspended by a light inextensible string of length l from a fixed point O, is shifted by theta_(0) as shown so as to strike the vertical wail perpendicularly.The maximum angle made by the string with vertical after the first collision, if e is the coefficient of restitution, is An [...]
Tags:
An iron ball of mass m ,
if e is the coefficient of restitution ,
is ,
is shifted by theta_(0) as shown so as to strike the vertical wail perpendicularly.The maximum angle made by the string with vertical after the first collision ,
suspended by a light inextensible string of length l from a fixed point O ,
A wire of resistance 12 Ωm-1 is bent to form a complete circle of radius 10 cm. The resistance between its two diametrically opposite point, A and B as shown in the figure, is.
22
Aug
A wire of resistance 12 Ωm-1 is bent to form a complete circle of radius 10 cm. The resistance between its two diametrically opposite point, A and B as shown in the figure, is. A and B as shown in the figure A wire of resistance 12 Ωm-1 is bent to form a complete circle [...]
The activity of a radioactive sample is measured as N0 counts per minute at t=0 and N0/e counts per minute at t=5 min. The time, (in minute) at which the activity reduces to half its value, is
22
Aug
The activity of a radioactive sample is measured as N0 counts per minute at t=0 and N0/e counts per minute at t=5 min. The time, (in minute) at which the activity reduces to half its value, is (in minute) at which the activity reduces to half its value is The activity of a radioactive sample [...]
The ratio of Kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom, is
21
Aug
The ratio of Kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom, is is The ratio of Kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom August 21, 2020 Category: Chapter 30 - Atoms , NEET Last 32 Years [...]
The de-Broglie wavelength of neutrons in thermal equilibrium with heavy water at a temperature T ( Kelvin ) and a mass m, is
21
Aug
The de-Broglie wavelength of neutrons in thermal equilibrium with heavy water at a temperature T ( Kelvin ) and a mass m, is is The de-Broglie wavelength of neutrons in thermal equilibrium with heavy water at a temperature T ( Kelvin ) and a mass m August 21, 2020 Category: Chapter 29 - Dual Nature [...]
A thin semicircular conducting the ring (PQR) of radius ′r′ is falling with its plane vertical in a horizontal magnetic field B, as shown in figure. The potential difference developed across the ring when its speed is v, is
19
Aug
A thin semicircular conducting the ring (PQR) of radius ′r′ is falling with its plane vertical in a horizontal magnetic field B, as shown in figure. The potential difference developed across the ring when its speed is v, is A thin semicircular conducting the ring (PQR) of radius ′r′ is falling with its plane vertical [...]
An arrangement of three parallel straight wires placed perpendicular to plane of paper carrying same current ‘I’ along the same direction is shown in Fig. Magnitude of force per unit length on the middle wire ‘B’ is given by
18
Aug
An arrangement of three parallel straight wires placed perpendicular to plane of paper carrying same current ‘I’ along the same direction is shown in Fig. Magnitude of force per unit length on the middle wire ‘B’ is given by August 18, 2020 Category: Chapter 23 - Magnetic Effects of Current and Moving Charges , NEET [...]
The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A, is
18
Aug
The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A, is is The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A August 18, 2020 Category: Chapter 21 - Capacitors , NEET Last [...]