Question Answers
Sahay Sir > Question Answers
A magnet is suspended in such a way that it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30∘ and 15 oscillations minute at a place where dip angle is 60∘. The ratio of total earth’s magnetic field at the two places is
18
Oct
A magnet is suspended in such a way that it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30∘ and 15 oscillations minute at a place where dip angle is 60∘. The ratio of total earth’s magnetic field at the two places is A magnetic [...]
What is the power output of 92U235 reactor if it takes 30 days to use up 2 kg of fuel and if each fission gives 185 MeV of usable energy ? Avogadro’s number = 6.02 * 10^26 per kilomole.
18
Oct
What is the power output of 92U235 reactor if it takes 30 days to use up 2 kg of fuel and if each fission gives 185 MeV of usable energy ? Avogadro’s number = 6.02 * 10^26 per kilomole. What is the power output of 92U235 reactor if it takes 30 days to use up [...]
Why is a 4He2 nucleus more stable than a 4Li3 nucleus ? (1) The strong nuclear force is larger when the neutron to proton ratio is higher. (2) The laws of nuclear physics forbid a
18
Oct
Why is a 4He2 nucleus more stable than a 4Li3 nucleus ? (1) The strong nuclear force is larger when the neutron to proton ratio is higher. (2) The laws of nuclear physics forbid a Why is a 4He2 nucleus more stable than a 4Li3 nucleus ? (1) The strong nuclear force is larger when [...]
The compound unstable nucleus 236U92 often decays in accordance with the following reaction , In the nuclear reaction presented above, the “other particle” might be
18
Oct
The compound unstable nucleus 236U92 often decays in accordance with the following reaction , In the nuclear reaction presented above, the “other particle” might be In the nuclear reaction presented above the "other particle" might be The compound unstable nucleus 236U92 often decays in accordance with the following reaction October 18, 2020 Category: Uncategorised (JEE [...]
Calculate the binding energy of a deuteron atom, which consists of a proton and a neutron, given that the atomic mass of the deuteron is 2.014102 u.
18
Oct
Calculate the binding energy of a deuteron atom, which consists of a proton and a neutron, given that the atomic mass of the deuteron is 2.014102 u. Calculate the binding energy of a deuteron atom given that the atomic mass of the deuteron is 2.014102 u. which consists of a proton and a neutron October [...]
A magnetic needle vibrates in a vertical plane parallel to the magnetic meridian, about a horizontal axis passing through its centre. Its frequency is n. If the plane of oscillation is turned about a vertical axis by 90°, the frequency of its oscillation in vertical plane will be
18
Oct
A magnetic needle vibrates in a vertical plane parallel to the magnetic meridian, about a horizontal axis passing through its centre. Its frequency is n. If the plane of oscillation is turned about a vertical axis by 90°, the frequency of its oscillation in vertical plane will be A magnetic needle vibrates in a vertical [...]
When an atom undergoes Beta+ decay, (1) a neutron changes into a proton (2) a proton changes into a neutron (3) a neutron changes into an antiproton
18
Oct
When an atom undergoes Beta+ decay, (1) a neutron changes into a proton (2) a proton changes into a neutron (3) a neutron changes into an antiproton (1) a neutron changes into a proton (2) a proton changes into a neutron (3) a neutron changes into an antiproton When an atom undergoes Beta+ decay October [...]
Two bar magnets placed with with their similar poles together makes 20 vib/min. When one of thenm is reversed the number of vibrations become 15 vib/min. what is the ratio of their dipole moment ?
18
Oct
Two bar magnets placed with with their similar poles together makes 20 vib/min. When one of thenm is reversed the number of vibrations become 15 vib/min. what is the ratio of their dipole moment ? Two bar magnets placed with with their similar poles together makes 20 vib/min. When one of thenm is reversed the [...]
The half-life of 131I is 8 days. Given a sample of 131 I at time t = 0, we can assert that
18
Oct
The half-life of 131I is 8 days. Given a sample of 131 I at time t = 0, we can assert that The half-life of 131I is 8 days. Given a sample of 131 I at time t = 0 we can assert that October 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
A magnet is cut into four equal parts by cutting it parallel to its length. what will be the time period of each part, if the time period of the original magnets in the same field is T0 ?
18
Oct
A magnet is cut into four equal parts by cutting it parallel to its length. what will be the time period of each part, if the time period of the original magnets in the same field is T0 ? A magnet is cut into four equal parts by cutting it parallel to its length. what [...]