Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
92U238 changes to 85At210 by a series of alpha and beta decays. Find the number of alpha decays undergone (an integer).
20
Oct
92U238 changes to 85At210 by a series of alpha and beta decays. Find the number of alpha decays undergone (an integer). 92U238 changes to 85At210 by a series of alpha and beta decays. Find the number of alpha decays undergone (an integer). October 20, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
A radioactive sample decays through two different decay processes alpha decay and beta decay. Half-life time for alpha decay is 3 h and half-life time for beta decay is 6 h. What will be the ratio of number
20
Oct
A radioactive sample decays through two different decay processes alpha decay and beta decay. Half-life time for alpha decay is 3 h and half-life time for beta decay is 6 h. What will be the ratio of number In Column 1 some of the nuclear reactions are given. Match this with the energy involved in [...]
A radioactive sample decays with an average-life of 20 ms. A capacitor of capacitance 100 micro F i charged to some potential and then the plates are connected through a resistance R.
20
Oct
A radioactive sample decays with an average-life of 20 ms. A capacitor of capacitance 100 micro F i charged to some potential and then the plates are connected through a resistance R. A radioactive sample decays with an average-life of 20 ms. A capacitor of capacitance 100 micro F i charged to some potential and [...]
A square loop PQRS of side ‘a’ and resistance ‘r’ is placed near an infinitely long wire carrying a constant current I. The sides PQ and RS are parallel to the wire. The wire and the loop are in the same plane. The loop is rotated by 180∘ about an axis parallel to the long wire and passing through the mid points of the side QR and PS. The total amont of charge which passes through any point of the loop during rotation is:
20
Oct
A square loop PQRS of side ‘a’ and resistance ‘r’ is placed near an infinitely long wire carrying a constant current I. The sides PQ and RS are parallel to the wire. The wire and the loop are in the same plane. The loop is rotated by 180∘ about an axis parallel to the long [...]
A radioactive sample has 8.0 * 10^18 active nuclei at a certain instant. How many of these nuclei will still be in the active state after two half-lives (in * 10^18)?
20
Oct
A radioactive sample has 8.0 * 10^18 active nuclei at a certain instant. How many of these nuclei will still be in the active state after two half-lives (in * 10^18)? A radioactive sample has 8.0 * 10^18 active nuclei at a certain instant. How many of these nuclei will still be in the active [...]
The half-life of a radioactive nuclide is 20 h. It is found that the fraction (1/x) of original activity remains after 40 hours ? What is the value of x ?
20
Oct
The half-life of a radioactive nuclide is 20 h. It is found that the fraction (1/x) of original activity remains after 40 hours ? What is the value of x ? The half-life of a radioactive nuclide is 20 h. It is found that the fraction (1/x) of original activity remains after 40 hours ? [...]
Nuclei A and B convert into a stable nucleus C. Nucleus A is converted into C by emitting 2 alpha particles and 3 beta particles. Nucleus B is converted into C by emitting one alpha particle and 5 beta particles.
20
Oct
Nuclei A and B convert into a stable nucleus C. Nucleus A is converted into C by emitting 2 alpha particles and 3 beta particles. Nucleus B is converted into C by emitting one alpha particle and 5 beta particles. the numbers of nuclei of A and B are 4 N0 and 2N0 respectively then [...]
A wooden stick of length 3l is rotated about an end with constant angular velocity ω in a uniform magnetic field B perpendicular to the plane of motion. If the upper one-third of its length is coated with copper, the potential difference across the whole length of the stick is
20
Oct
A wooden stick of length 3l is rotated about an end with constant angular velocity ω in a uniform magnetic field B perpendicular to the plane of motion. If the upper one-third of its length is coated with copper, the potential difference across the whole length of the stick is the current in wire AB [...]
Before the neutrino hypothesis, the beta decay process was thought to be the transition: n give p + e^- If the neutron was at rest, the proton and electron would emerge with fixed energies. Given p is the magnitude of the momentum
20
Oct
Before the neutrino hypothesis, the beta decay process was thought to be the transition: n give p + e^- If the neutron was at rest, the proton and electron would emerge with fixed energies. Given p is the magnitude of the momentum Before the neutrino hypothesis the beta decay process was thought to be the [...]
A copper rod is bent inot a semi-circle of radius a and at ends straight parts are bent along diameter of the semi-circle and are passed through fixed, smooth and conducting ring O and O’ as shown in figure. A capacitor having capacitance C is connected to the rings. The system is located in a uniform magnetic field of induction B such that axis of rotation OO’ is perpendicular to the field direction. At initial moment of time (t=0), plane of semi-circle was normal to the field direction and the semi-circle is set in rotation with constant angular velocity ω. Neglect the resistance and inductance of the circuit. The current flowing through the circuit as function of time is
20
Oct
A copper rod is bent inot a semi-circle of radius a and at ends straight parts are bent along diameter of the semi-circle and are passed through fixed, smooth and conducting ring O and O’ as shown in figure. A capacitor having capacitance C is connected to the rings. The system is located in a [...]
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A copper rod is bent inot a semi-circle of radius a and at ends straight parts are bent along diameter of the semi-circle and are passed through fixed ,
the current in wire AB is ( ab is one of the diameters ) ,
The radius of the circular conducting loop shown in figure is R. Magnetic field is decreasing at a constant rate alpha. Resistance per unit length of the loop is rho. Then ,