Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
The pressure that has to be applied to the ends of a steel wire of length 10 cm to keep its length constant when its temperature is raised by 100∘C is : (For steel Young’s modulus is 2 × 10^11 Nm^−2 and coefficient of thermal expansion is 1.1 × 10^−5 K_1)
10
Oct
The pressure that has to be applied to the ends of a steel wire of length 10 cm to keep its length constant when its temperature is raised by 100∘C is : (For steel Young’s modulus is 2 × 10^11 Nm^−2 and coefficient of thermal expansion is 1.1 × 10^−5 K_1) Find the maximum length [...]
Two wires are made of the same material and have the same volume. However wire 1 has cross-sectional area A and wire 2 has cross-sectional area 3A. If the length of wire 1 increases by Δx on applying force F, how much force is needed to stretch wire 2 by the same amount?
10
Oct
Two wires are made of the same material and have the same volume. However wire 1 has cross-sectional area A and wire 2 has cross-sectional area 3A. If the length of wire 1 increases by Δx on applying force F, how much force is needed to stretch wire 2 by the same amount? Find the [...]
In Young’s double slit interference experiment, if the slit separation is made threefold, the fringe width becomes
10
Oct
In Young’s double slit interference experiment, if the slit separation is made threefold, the fringe width becomes if the slit separation is made threefold In Young's double slit interference experiment the fringe width becomes October 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A ring of radius r made of wire of density ρ is rotated about a stationary vertical axis passing through its centre and perpendicular to the plane of the ring as shown in the figure. Determine the angular velocity (in rad/s) of ring at which the ring breaks. The wire breaks at tensile stress σ. Ignore gravity. Take σ/ρ = 4 and r = 1 m.
10
Oct
A ring of radius r made of wire of density ρ is rotated about a stationary vertical axis passing through its centre and perpendicular to the plane of the ring as shown in the figure. Determine the angular velocity (in rad/s) of ring at which the ring breaks. The wire breaks at tensile stress σ. [...]
In a double-slit experiment, instead of taking slits of equal width, one slit is made twice as wide as the other. Then in the interference pattern
10
Oct
In a double-slit experiment, instead of taking slits of equal width, one slit is made twice as wide as the other. Then in the interference pattern In a double slit experiment instead of taking slits of equal width one slit is made twice as wide as the other. Then in the interference pattern October 10, [...]
A light ray of frequency v and wavelength lemda enters a liquid of refractive index 3/2. The ray travels in the liquid with
10
Oct
A light ray of frequency v and wavelength lemda enters a liquid of refractive index 3/2. The ray travels in the liquid with A light ray of frequency v and wavelength lemda enters a liquid of refractive index 3/2. The ray travels in the liquid with October 10, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
A wire having a length L and cross- sectional area A is suspended at one of its ends from a ceiling . Density and young’s modulus of material of the wire are ρ and Y, respectively. Its strain energy due to its own weight is ρ^2 g^2 AL^3/Y.
10
Oct
A wire having a length L and cross- sectional area A is suspended at one of its ends from a ceiling . Density and young’s modulus of material of the wire are ρ and Y, respectively. Its strain energy due to its own weight is ρ^2 g^2 AL^3/Y. A wire having a length L and [...]
The maximum intensity in Young’s double slit experiment is I0. Distance between the slit is d = 5 lemda, where lemda is the wavelength of monochromatic light used in the experiment.
10
Oct
The maximum intensity in Young’s double slit experiment is I0. Distance between the slit is d = 5 lemda, where lemda is the wavelength of monochromatic light used in the experiment. The maximum intensity in Young's double slit experiment is I0. Distance between the slit is d = 5 lemda where lemda is the wavelength [...]
On Young’s double-slit experiment, the slits are illuminated by monochromatic light. The entire set-up is immersed in pure water. Which of the following act cannot restore the original
10
Oct
On Young’s double-slit experiment, the slits are illuminated by monochromatic light. The entire set-up is immersed in pure water. Which of the following act cannot restore the original On Young's double-slit experiment the slits are illuminated by monochromatic light. The entire set-up is immersed in pure water. Which of the following act cannot restore the [...]
Find the elastic potential energy per unit volume water ( in x 10^3 J/m^3 ) at a depth of 1 km. Given , compressibility of water = 5 x 10^10 SI units and density of water = 1000 kg/m^3.
10
Oct
Find the elastic potential energy per unit volume water ( in x 10^3 J/m^3 ) at a depth of 1 km. Given , compressibility of water = 5 x 10^10 SI units and density of water = 1000 kg/m^3. compressibility of water = 5 x 10^10 SI units and density of water = 1000 kg/m^3. [...]