Part 1
Four identical rods each of mass m and length l are joined to form a rigid square frame. The frame lies in the xy plane, with its centre at the origin and the sides parallel to the x and y axes. Its moment of inertial about
27
Nov
Four identical rods each of mass m and length l are joined to form a rigid square frame. The frame lies in the xy plane, with its centre at the origin and the sides parallel to the x and y axes. Its moment of inertial about
Two identical cylindrical vessels, with their bases at the same level, each contain a liquid of density ρ. The height of liquid in one vessel in h 1 and that in the other is h2. The area of either base is A. What is the work done by gravity in equalizing the levels when the vessels are interconnected?
27
Nov
Two identical cylindrical vessels, with their bases at the same level, each contain a liquid of density ρ. The height of liquid in one vessel in h 1 and that in the other is h2. The area of either base is A. What is the work done by gravity in equalizing the levels when the [...]
Consider the situation as shown in the diagram , the ball strikes the wall normally and the collision is elastic , the change in the kinetic energy of the ball is
27
Nov
Consider the situation as shown in the diagram , the ball strikes the wall normally and the collision is elastic , the change in the kinetic energy of the ball is Consider the situation as shown in the diagram the ball strikes the wall normally and the collision is elastic the change in the kinetic [...]
Two balls are thrown simultaneously from top of tower in air as shown in the figure. (i) The acceleration of the center of mass of two balls while in air is equal to g. (ii) The path followed by the center of mass is parabola. (iii) The path followed by the center of mass will be vertical line if u1 sin alpha = u2 sin beta. (iv) The acceleration of the centre of mass will change if one ball after striking the ground comes to rest.
27
Nov
Two balls are thrown simultaneously from top of tower in air as shown in the figure. (i) The acceleration of the center of mass of two balls while in air is equal to g. (ii) The path followed by the center of mass is parabola. (iii) The path followed by the center of mass will [...]
If the ratio of amounts of scattering of two light waves is 1:4, the ratio of their wavelength is
17
Nov
If the ratio of amounts of scattering of two light waves is 1:4, the ratio of their wavelength is If the ratio of amounts of scattering of two light waves is 1:4 the ratio of their wavelength is November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 16 - Wave Motion and Waves [...]
A beam of unpolarised light is passed first through tourmaline crystal A and then through another tourmaline crystal B oriented so that its principal plane is parallel to that of A. The intensity of the emergent light is I. If A now rotated by 45∘ in a plane perpendicular to the direction of the incident ray, the intensity of the emergent light will be
17
Nov
A beam of unpolarised light is passed first through tourmaline crystal A and then through another tourmaline crystal B oriented so that its principal plane is parallel to that of A. The intensity of the emergent light is I. If A now rotated by 45∘ in a plane perpendicular to the direction of the incident [...]
Two polaroids are placed in the path of unpolarized beam of intensity I0 such that no light is emitted from the second polaroid. If a third polaroid whose polarization axis makes an angle θ with the polarization axis of first polaroid, is placed between these polariods then the intensity of light emerging from the last polaroid will be.
17
Nov
Two polaroids are placed in the path of unpolarized beam of intensity I0 such that no light is emitted from the second polaroid. If a third polaroid whose polarization axis makes an angle θ with the polarization axis of first polaroid, is placed between these polariods then the intensity of light emerging from the last [...]
Four polaroids are placed such that the optic axis of each is inclined at an angle of 30∘ with the optic axis of the preceding one. If unpolarised light of intensity I_(0) falls on the first polaroid, the light transmitted from the fourth is
17
Nov
Four polaroids are placed such that the optic axis of each is inclined at an angle of 30∘ with the optic axis of the preceding one. If unpolarised light of intensity I_(0) falls on the first polaroid, the light transmitted from the fourth is Four polaroids are placed such that the optic axis of each [...]
The graph showing the dependence of intensity transmitted light on the angle between polariser are analyser, is
17
Nov
The graph showing the dependence of intensity transmitted light on the angle between polariser are analyser, is is The graph showing the dependence of intensity transmitted light on the angle between polariser are analyser November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 16 - Wave Motion and Waves on a String , [...]
When an unpolarized light of intensity I0 is incident on a polarizing sheet, the intensity of the light which does not get transmitted is:
17
Nov
When an unpolarized light of intensity I0 is incident on a polarizing sheet, the intensity of the light which does not get transmitted is: the intensity of the light which does not get transmitted is When an unpolarized light of intensity I0 is incident on a polarizing sheet November 17, 2020 Category: Cengage NEET by [...]