Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A metallic square loop PQRS is moving in its own plane with velocity v in a uniform magnetic field perpendicular to its plane as shown in Fig. If VP,VQ,VRandVS are the potentials of points P, Q, R and S then which of the following is an incorrect statement?
20
Oct
A metallic square loop PQRS is moving in its own plane with velocity v in a uniform magnetic field perpendicular to its plane as shown in Fig. If VP,VQ,VRandVS are the potentials of points P, Q, R and S then which of the following is an incorrect statement? -q A metallic square loop PQRS is [...]
A plane loop is shaped as two squares (Fig) and placed in a uniform magnetic field at right angle to the loop’s plane. The magnetic induction varies with time as B = B0 sin (ω)t , where B0 = 10 mT and (ω) = 100 rad/s. The wires do not touch at point A. If resistance per unit length of the loop is 50 m(Ω)/m, then amplitude of current induced in the loop is
20
Oct
A plane loop is shaped as two squares (Fig) and placed in a uniform magnetic field at right angle to the loop’s plane. The magnetic induction varies with time as B = B0 sin (ω)t , where B0 = 10 mT and (ω) = 100 rad/s. The wires do not touch at point A. If [...]
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A plane loop is shaped as two squares (Fig) and placed in a uniform magnetic field at right angle to the loop's plane. The magnetic induction varies with time as B = B0 sin (ω)t ,
then amplitude of current induced in the loop is ,
where B0 = 10 mT and (ω) = 100 rad/s. The wires do not touch at point A. If resistance per unit length of the loop is 50 m(Ω)/m ,
Suppose that the energy liberated in the combination of a hole-electron pair is converted into electromagnetic radiation. If the maximum wavelength of the radiation emitted is 630 mm, what
20
Oct
Suppose that the energy liberated in the combination of a hole-electron pair is converted into electromagnetic radiation. If the maximum wavelength of the radiation emitted is 630 mm, what Suppose that the energy liberated in the combination of a hole-electron pair is converted into electromagnetic radiation. If the maximum wavelength of the radiation emitted is [...]
A conducting loop of radius R is present in a uniform magnetic field B perpendicular to the plane of the ring. If radius R varies as a function of time t, as R=R0+t. The emf induced in the loop is
20
Oct
A conducting loop of radius R is present in a uniform magnetic field B perpendicular to the plane of the ring. If radius R varies as a function of time t, as R=R0+t. The emf induced in the loop is A conducting loop of radius R is present in a uniform magnetic field B perpendicular [...]
A radioactive nucleus A with a half-life T, decays into a nucleus B. At t = 0, there is no nucleus B. At some time t, the ratio of the number of B to that of A is 0.3. Then, t is given by
20
Oct
A radioactive nucleus A with a half-life T, decays into a nucleus B. At t = 0, there is no nucleus B. At some time t, the ratio of the number of B to that of A is 0.3. Then, t is given by A radioactive nucleus A with a half-life T decays into a [...]
A wire loop is placed in a region of time varying magnetic field which is oriented orthogonally to the plane of the loop as shown in Fig. The graph shows the magnetic field variation as the function of time. Assume the positive emf is the one which drives a current in the clockwise direction and seen by the observer in the direction of B. Which of the following graphs best represents the induced emf as a function of time?
20
Oct
A wire loop is placed in a region of time varying magnetic field which is oriented orthogonally to the plane of the loop as shown in Fig. The graph shows the magnetic field variation as the function of time. Assume the positive emf is the one which drives a current in the clockwise direction and [...]
Radius of a circular ring is changing with time and the coil is placed in uniform magnetic field perpendicular to its plane. The variation of ‘r’ with time ‘t’ is shown in Fig. Then induced emf e with time t will be best represented by
20
Oct
Radius of a circular ring is changing with time and the coil is placed in uniform magnetic field perpendicular to its plane. The variation of ‘r’ with time ‘t’ is shown in Fig. Then induced emf e with time t will be best represented by In a region at a distance r from z axis [...]
Half-lives of two radioactive elements A and B are 20 minutes and 40 minutes, respectively. Initially, the samples have equal number of nuclei. After 80 minutes, the ratio of decayed
20
Oct
Half-lives of two radioactive elements A and B are 20 minutes and 40 minutes, respectively. Initially, the samples have equal number of nuclei. After 80 minutes, the ratio of decayed Half-lives of two radioactive elements A and B are 20 minutes and 40 minutes respectively. Initially the ratio of decayed the samples have equal number [...]
Hydrogen (1H1), Deuterium (1H2), singly ionised Helium (2He4) and doubly ionised lithium (3Li6)++ all have one electron around the nucleus. Consider an electron transition from n = 2 to n = 1.
20
Oct
Hydrogen (1H1), Deuterium (1H2), singly ionised Helium (2He4) and doubly ionised lithium (3Li6)++ all have one electron around the nucleus. Consider an electron transition from n = 2 to n = 1. Deuterium (1H2) Hydrogen (1H1) singly ionised Helium (2He4) and doubly ionised lithium (3Li6)++ all have one electron around the nucleus. Consider an electron [...]
Assume that a neutron breaks into a proton and an electron. The energy released during this process is: (mass of neutron = 1.6725 *10^-27 kg, mass of proton = 1.6725 * 10^-27 kg,
20
Oct
Assume that a neutron breaks into a proton and an electron. The energy released during this process is: (mass of neutron = 1.6725 *10^-27 kg, mass of proton = 1.6725 * 10^-27 kg, Assume that a neutron breaks into a proton and an electron. The energy released during this process is: (mass of neutron = [...]