Question Answers
Sahay Sir > Question Answers
Arrange List A List B 1. Explosive 2. Artificial gem 3. Self reduction 4. Magnetic material
27
Nov
Arrange List A List B 1. Explosive 2. Artificial gem 3. Self reduction 4. Magnetic material Arrange List A List B 1. Explosive 2. Artificial gem 3. Self reduction 4. Magnetic material November 27, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A body of mass 1 kg, initially at rest, explodes and breaks into three fragments of masses in the ratio 1:1:3. The two pieces of equal mass fly off perpendicular to each other with a speed of 30m/s each. If the velocity of the heavier fragment is
27
Nov
A body of mass 1 kg, initially at rest, explodes and breaks into three fragments of masses in the ratio 1:1:3. The two pieces of equal mass fly off perpendicular to each other with a speed of 30m/s each. If the velocity of the heavier fragment is A body of mass 1 kg A man [...]
Tags:
A body of mass 1 kg ,
A man places a chain of mass ′m′ and length ′l′ on a table slowly. Initially ,
initially at rest ,
the lower end of the chain just touches the table. The man drops the chain when half of the chain is in the vertical position. Then work done by the man in this process is? ,
A mass m1 moves with a great velocity. It strikes another mass m2 at rest in head-on collision. It comes back along its path with low speed after collision.then
27
Nov
A mass m1 moves with a great velocity. It strikes another mass m2 at rest in head-on collision. It comes back along its path with low speed after collision.then A mass m1 moves with a great velocity. It strikes another mass m2 at rest in head on collision. It comes back along its path with [...]
H2SO4 cannot be used to prepare HBr from NaBr as it (a) Reacts slowly with NaBr (b) Oxidises HBr (c) Reduces HBr
27
Nov
H2SO4 cannot be used to prepare HBr from NaBr as it (a) Reacts slowly with NaBr (b) Oxidises HBr (c) Reduces HBr H2SO4 cannot be used to prepare HBr from NaBr as it (a) Reacts slowly with NaBr (b) Oxidises HBr (c) Reduces HBr November 27, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
Which one of the following pairs of substances when mixed, produces chlorine gas at room temperature (a) NaCl and MnO2
27
Nov
Which one of the following pairs of substances when mixed, produces chlorine gas at room temperature (a) NaCl and MnO2 produces chlorine gas at room temperature (a) NaCl and MnO2 Which one of the following pairs of substances when mixed November 27, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A ball is projected in a direction inclined to the vertical and bounces on a smooth horizontal plane. The range of one rebound is R. If the coefficient of restitution is e, then range of the next rebound is.
27
Nov
A ball is projected in a direction inclined to the vertical and bounces on a smooth horizontal plane. The range of one rebound is R. If the coefficient of restitution is e, then range of the next rebound is. A ball is projected in a direction inclined to the vertical and bounces on a smooth [...]
One mole of calcium phosphide on reaction with excess water gives (a) One mole of phosphine (b) Two moles of phosphoric acid
27
Nov
One mole of calcium phosphide on reaction with excess water gives (a) One mole of phosphine (b) Two moles of phosphoric acid One mole of calcium phosphide on reaction with excess water gives (a) One mole of phosphine (b) Two moles of phosphoric acid November 27, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
An object of mass 10 kg is launched from from the top of building at t=0 , at an angle of 37 degrees above the horizontal with a speed of 30 m/s . After some time , an explosion splits the projectile into two pieces . one piece of mass 4 kg is observed at ( 105 , 43 ) meters at t=2 secs . find the location of second piece at t=2 secs
27
Nov
An object of mass 10 kg is launched from from the top of building at t=0 , at an angle of 37 degrees above the horizontal with a speed of 30 m/s . After some time , an explosion splits the projectile into two pieces . one piece of mass 4 kg is observed at [...]
Tags:
43 ) meters at t=2 secs . find the location of second piece at t=2 secs ,
an explosion splits the projectile into two pieces . one piece of mass 4 kg is observed at ( 105 ,
An object of mass 10 kg is launched from from the top of building at t=0 ,
at an angle of 37 degrees above the horizontal with a speed of 30 m/s . After some time ,
If the 1st ionization energy of H atom is atom 13..6 eV , then the 2nd ionization energy of He atom is
27
Nov
If the 1st ionization energy of H atom is atom 13..6 eV , then the 2nd ionization energy of He atom is If the 1st ionization energy of H atom is atom 13..6 eV then the 2nd ionization energy of He atom is November 27, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + [...]
After a totally inelastic collision, two objects of the same mass and same initial speeds are found to move together at half of their initial speeds. The angle between the initial velocities of the objects is
27
Nov
After a totally inelastic collision, two objects of the same mass and same initial speeds are found to move together at half of their initial speeds. The angle between the initial velocities of the objects is After a totally inelastic collision two objects of the same mass and same initial speeds are found to move [...]