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An organ pipe P1 closed at one end and vibrating in its first overtone pipe P2 open at booth ends vibrating in its third overtone are in resonance with a given tuning fork. The ratio of the lengths of P1 to that of P2 is
31
Oct
An organ pipe P1 closed at one end and vibrating in its first overtone pipe P2 open at booth ends vibrating in its third overtone are in resonance with a given tuning fork. The ratio of the lengths of P1 to that of P2 is If the fundamental frequency of closed pipe is 50Hz. the [...]
(b) Earth also moves in circular orbit around the sun once every year with an orbital radius of 1.5 x 10^11 m. What is the acceleration of the earth (or any object on the surface of the earth) towards the centre of the sun? How does this acceleration compare with g = 9.8 m/s^2 ?
31
Oct
(b) Earth also moves in circular orbit around the sun once every year with an orbital radius of 1.5 x 10^11 m. What is the acceleration of the earth (or any object on the surface of the earth) towards the centre of the sun? How does this acceleration compare with g = 9.8 m/s^2 ? [...]
(a) Earth can be thought of as a sphere of radius 6400 km. Any object (or a person) is performing circular motion around the axis of the earth due to the earth rotation (period 1 day). What is the acceleration of object on the surface of the earth (at equator) towards its centre? What is it at latitude theta ? How does these accelerations compare with g = 9.8 m/s^2?
31
Oct
(a) Earth can be thought of as a sphere of radius 6400 km. Any object (or a person) is performing circular motion around the axis of the earth due to the earth rotation (period 1 day). What is the acceleration of object on the surface of the earth (at equator) towards its centre? What is [...]
Figure shows a uniformly charged hemisphere of radius R. It has a volume charge density ρ. If the electric field at a point 2R, above the its center is E, then what is the electric field at the point 2R below its center?
31
Oct
Figure shows a uniformly charged hemisphere of radius R. It has a volume charge density ρ. If the electric field at a point 2R, above the its center is E, then what is the electric field at the point 2R below its center? above the its center is E Figure shows a uniformly charged hemisphere [...]
A fighter plane is flying horizontally at an altitude of 1.5 km with speed 720 km/h. At what angle of sight (w.r.t. horizontal) when the target is seen, should the pilot drop the bomb in order to attack the target than?
31
Oct
A fighter plane is flying horizontally at an altitude of 1.5 km with speed 720 km/h. At what angle of sight (w.r.t. horizontal) when the target is seen, should the pilot drop the bomb in order to attack the target than? A fighter plane is flying horizontally at an altitude of 1.5 km with speed [...]
A ball is thrown from a roof top at an angle of 45° above the horizontal. It hits the ground a few seconds later. At what point during its motion, does the ball have . (a) greatest speed (b) smallest speed (c) greatest acceleration Explain.
31
Oct
A ball is thrown from a roof top at an angle of 45° above the horizontal. It hits the ground a few seconds later. At what point during its motion, does the ball have . (a) greatest speed (b) smallest speed (c) greatest acceleration Explain. A ball is thrown from a roof top at an [...]
A cyclist starts from centre O of a circular park of radius 1 km and moves along the path OPRQO as shown in figure. If he maintains constant speed of 10 ms^−1, what is his acceleration at point R in the magnitude and direction ?
31
Oct
A cyclist starts from centre O of a circular park of radius 1 km and moves along the path OPRQO as shown in figure. If he maintains constant speed of 10 ms^−1, what is his acceleration at point R in the magnitude and direction ? A cyclist starts from centre O of a circular park [...]
Following are four different relations about displacement, velocity and acceleration for the motion of a particle in general. Choose the incorrect one (s).
31
Oct
Following are four different relations about displacement, velocity and acceleration for the motion of a particle in general. Choose the incorrect one (s). Following are four different relations about displacement velocity and acceleration for the motion of a particle in general. Choose the incorrect one (s). October 31, 2020 Category: Chapter 3 - Motion in [...]
A particle slides down a frictionless parabolic (y=x^2) track (A−B−C) starting from rest at point A. Point B is at the vertex of parabola and point C is at a height less than that of point A. After C, the particle moves freely in air as a projectile. If the particle reaches highest point at P, then
31
Oct
A particle slides down a frictionless parabolic (y=x^2) track (A−B−C) starting from rest at point A. Point B is at the vertex of parabola and point C is at a height less than that of point A. After C, the particle moves freely in air as a projectile. If the particle reaches highest point at [...]
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A particle slides down a frictionless parabolic (y=x^2) track (A−B−C) starting from rest at point A. Point B is at the vertex of parabola and point C is at a height less than that of point A. After C ,
the particle moves freely in air as a projectile. If the particle reaches highest point at P ,
then ,
A 20 g particle is subjected to two simple harmonic motions x1 = 2 sin 10t, x2 = 4 sin (10t + pie/3), where x1 and x2 are in metres and t is in seconds.
31
Oct
A 20 g particle is subjected to two simple harmonic motions x1 = 2 sin 10t, x2 = 4 sin (10t + pie/3), where x1 and x2 are in metres and t is in seconds. A 20 g particle is subjected to two simple harmonic motions x1 = 2 sin 10t where x1 and x2 [...]