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Two equal masses each ′m′ are hung from a balance whose scale pans differ in vertical height by ′h′. the error in weighing in terms of density of the earth p is
13
Sep
Two equal masses each ′m′ are hung from a balance whose scale pans differ in vertical height by ′h′. the error in weighing in terms of density of the earth p is Two equal masses each ′m′ are hung from a balance whose scale pans differ in vertical height by ′h′. the error in weighing [...]
The maximum vertical distance through which a fully dressed astronaut can jump on the earth is 0.5m. If mean density of the Moon is two-third that of the earth and radius is one quarter that of the earth, the maximum vertical distance which he can jump on the Moon and the ratio of the time of duration of the jump on the Moon to hold on the earth are
13
Sep
The maximum vertical distance through which a fully dressed astronaut can jump on the earth is 0.5m. If mean density of the Moon is two-third that of the earth and radius is one quarter that of the earth, the maximum vertical distance which he can jump on the Moon and the ratio of the time [...]
The ratio of ionization energy of Bohr’s hydrogen atom and Bohr’s hydrogen like lithium atom is
13
Sep
The ratio of ionization energy of Bohr’s hydrogen atom and Bohr’s hydrogen like lithium atom is The ratio of ionization energy of Bohr's hydrogen atom and Bohr's hydrogen like lithium atom is September 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
If the radius of the earth decreases by 10%, the mass remaining unchanged, what will happen to the acceleration due to gravity?
13
Sep
If the radius of the earth decreases by 10%, the mass remaining unchanged, what will happen to the acceleration due to gravity? If the radius of the earth decreases by 10% the mass remaining unchanged what will happen to the acceleration due to gravity? September 13, 2020 Category: Cengage JEE Mains Physics by B.M Sharma [...]
The figure shows a graph between 1n∣∣∣AnA1∣∣∣ and 1n|n|, where An is the area enclosed by the nth orbit in a hydrogen like atom. The correct curve is
13
Sep
The figure shows a graph between 1n∣∣∣AnA1∣∣∣ and 1n|n|, where An is the area enclosed by the nth orbit in a hydrogen like atom. The correct curve is The figure shows a graph between 1n∣∣∣AnA1∣∣∣ and 1n|n| where An is the area enclosed by the nth orbit in a hydrogen like atom. The correct curve [...]
Three uniform spheres, each having mass m and radius R, are kept in such a way that each touches the other two, the magnitude of the gravitational force on any sphere due to the other two is
13
Sep
Three uniform spheres, each having mass m and radius R, are kept in such a way that each touches the other two, the magnitude of the gravitational force on any sphere due to the other two is are kept in such a way that each touches the other two each having mass m and radius [...]
Work function of lithium and copper are respectively 2.3 eV and 4.0 eV . Which one of the metal will be useful for the photoelectric cell working with visible light ? (h = 6.6 × 10^−34J−s ,c = 3×10^8 m/s)
13
Sep
Work function of lithium and copper are respectively 2.3 eV and 4.0 eV . Which one of the metal will be useful for the photoelectric cell working with visible light ? (h = 6.6 × 10^−34J−s ,c = 3×10^8 m/s) c = 3×10^8 m/s) Work function of lithium and copper are respectively 2.3 eV and [...]
Two satellites A and B of masses m1 and m2(m1 = 2m2) are moving in circular orbits of radii r1 and r2(r1 = 4r2), respectively, around the earth. If their periods are TA and TB, then the ratio TA/TB is
13
Sep
Two satellites A and B of masses m1 and m2(m1 = 2m2) are moving in circular orbits of radii r1 and r2(r1 = 4r2), respectively, around the earth. If their periods are TA and TB, then the ratio TA/TB is around the earth. If their periods are TA and TB respectively then the ratio TA/TB [...]
The value of g (acceleration due to gravity) at earth’s surface is 10ms^−2. It’s value in m/s at the centre of the earth which is assumed to be a sphere of radius R metre and uniform mass density is,
13
Sep
The value of g (acceleration due to gravity) at earth’s surface is 10ms^−2. It’s value in m/s at the centre of the earth which is assumed to be a sphere of radius R metre and uniform mass density is, The value of g (acceleration due to gravity) at earth's surface is 10ms^−2. It's value in [...]
Hydrogen atom in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. The spectral lines emitted by hydrogen atoms according to bohr’s theory will be
13
Sep
Hydrogen atom in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. The spectral lines emitted by hydrogen atoms according to bohr’s theory will be Hydrogen atom in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. The spectral lines emitted by hydrogen atoms according to bohr's [...]