Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Two magnets of equal mass are joined at right angles to each other . Magnet N1S1 has a magnet miment root 3 times that of N2S2. This arrangement is pivoted so that it is freee to rotate in a horizontal plane. when in equilibrium , theta is
18
Oct
Two magnets of equal mass are joined at right angles to each other . Magnet N1S1 has a magnet miment root 3 times that of N2S2. This arrangement is pivoted so that it is freee to rotate in a horizontal plane. when in equilibrium , theta is A thin bar magnet of length 2 L [...]
A freshly prepared radioactive source of half-life 2 h emits radiation of intensity which is 64 times the permissible safe level. The minimum time after which it would be possible to
18
Oct
A freshly prepared radioactive source of half-life 2 h emits radiation of intensity which is 64 times the permissible safe level. The minimum time after which it would be possible to A freshly prepared radioactive source of half-life 2 h emits radiation of intensity which is 64 times the permissible safe level. The minimum time [...]
Stationary nucleus 238U decays by a emission generating a total kinetic energy T : 238U92 to 234Th90 + 4alpha 2 What is the kinetic energy of the alpha particle ?
18
Oct
Stationary nucleus 238U decays by a emission generating a total kinetic energy T : 238U92 to 234Th90 + 4alpha 2 What is the kinetic energy of the alpha particle ? Stationary nucleus 238U decays by a emission generating a total kinetic energy T : 238U92 to 234Th90 + 4alpha 2 What is the kinetic energy [...]
Three identical bar magnets , each of magnetic moment M, are placed in the form of an equilateral triangle with north pole of one touching the south pole of the other ( see figure ). The net magnetic moment of the system is
18
Oct
Three identical bar magnets , each of magnetic moment M, are placed in the form of an equilateral triangle with north pole of one touching the south pole of the other ( see figure ). The net magnetic moment of the system is are placed in the form of an equilateral triangle with north pole [...]
If 10% of a radioactive substance decays in every 5 year, then the percentage of the substance that will have decayed in 20 years will be
18
Oct
If 10% of a radioactive substance decays in every 5 year, then the percentage of the substance that will have decayed in 20 years will be If 10% of a radioactive substance decays in every 5 year then the percentage of the substance that will have decayed in 20 years will be October 18, 2020 [...]
The rate of decay of a radioactive element at any instant is 10^3 disintegrations s^-1. If the half-life of the element is 1 s, then the rate of decay after 1 s will be
18
Oct
The rate of decay of a radioactive element at any instant is 10^3 disintegrations s^-1. If the half-life of the element is 1 s, then the rate of decay after 1 s will be The rate of decay of a radioactive element at any instant is 10^3 disintegrations s^-1. If the half-life of the element [...]
The B – H curves (a) and (b) shown in the figure are associated with
18
Oct
The B – H curves (a) and (b) shown in the figure are associated with The B - H curves (a) and (b) shown in the figure are associated with October 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The fraction of a radioactive material which remains active after time t is 9/16. The fraction which remains active after time t/2 will be
18
Oct
The fraction of a radioactive material which remains active after time t is 9/16. The fraction which remains active after time t/2 will be The fraction of a radioactive material which remains active after time t is 9/16. The fraction which remains active after time t/2 will be October 18, 2020 Category: Uncategorised (JEE Advanced [...]
A stationary thorium nucleus ( A = 220, Z = 90 ) emits an alpha particle with kinetic energy E alpha. What is the kinetic energy of the recoiling nucleus ?
18
Oct
A stationary thorium nucleus ( A = 220, Z = 90 ) emits an alpha particle with kinetic energy E alpha. What is the kinetic energy of the recoiling nucleus ? A stationary thorium nucleus ( A = 220 Z = 90 ) emits an alpha particle with kinetic energy E alpha. What is the [...]
The half-life of At is 100 micro s. The time taken for the radioactivity of a sample of At to decay to 1/16th of its initial value is
18
Oct
The half-life of At is 100 micro s. The time taken for the radioactivity of a sample of At to decay to 1/16th of its initial value is The half-life of At is 100 micro s. The time taken for the radioactivity of a sample of At to decay to 1/16th of its initial value [...]