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Suppose that the electric field amplitude of an electronomagnetic wave is Eo = 120 N/C and that its frewquency is v = 50 MHz. (a) Determine Bo, omega,K, and lamda . (b) Find expression for E and B.
08
Sep
Suppose that the electric field amplitude of an electronomagnetic wave is Eo = 120 N/C and that its frewquency is v = 50 MHz. (a) Determine Bo, omega,K, and lamda . (b) Find expression for E and B. and lamda.(b) Find expression for E and B. K omega Suppose that the electric field amplitude of [...]
A particle A is at origin and particle B is at distance y = − d at t = 0. They move with constant velocity v, A towards positive x-axis and B towards origin. The time at which distance between them is minimum and minimum distance will be
08
Sep
A particle A is at origin and particle B is at distance y = − d at t = 0. They move with constant velocity v, A towards positive x-axis and B towards origin. The time at which distance between them is minimum and minimum distance will be A particle A is at origin and [...]
The fol.lowing figure shows capacitor made of two circular plates. The capacitor is being charged by an external source which supply constant current equal to 15 A. Obtain displacement charged by constant current across plates. Given dv / dt = 1.87 x 10^9 V /s
08
Sep
The fol.lowing figure shows capacitor made of two circular plates. The capacitor is being charged by an external source which supply constant current equal to 15 A. Obtain displacement charged by constant current across plates. Given dv / dt = 1.87 x 10^9 V /s and radio waves of wave length 500 m? What physical [...]
A ship is travelling due east at a speed of 15 km/h. Find the speed of a boat heading 30 east of north if it appears always due north from the ship.
08
Sep
A ship is travelling due east at a speed of 15 km/h. Find the speed of a boat heading 30 east of north if it appears always due north from the ship. A ship is travelling due east at a speed of 15 km/h. Find the speed of a boat heading 30 east of north [...]
Two boys are standing at the ends A and B of a ground, where AB = a. The boy at B starts running in a direction perpendicular to AB with velocity v1. The boy at A starts running simultaneously with velocity v and catches the other boy in a time t, where t is
08
Sep
Two boys are standing at the ends A and B of a ground, where AB = a. The boy at B starts running in a direction perpendicular to AB with velocity v1. The boy at A starts running simultaneously with velocity v and catches the other boy in a time t, where t is Two [...]
What physical quantity is the same for X-rays of wave length 6800 A, and radio waves of wave length 500 m?
08
Sep
What physical quantity is the same for X-rays of wave length 6800 A, and radio waves of wave length 500 m? and radio waves of wave length 500 m? What physical quantity is the same for X-rays of wave length 6800 A September 8, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
A plane electomagnetic wave travels in vaccum along z-direction. What can you say about the directions of its electric and magnetic field vectors? If the frequency of the wave is 30 MHz, what is its wave length?
08
Sep
A plane electomagnetic wave travels in vaccum along z-direction. What can you say about the directions of its electric and magnetic field vectors? If the frequency of the wave is 30 MHz, what is its wave length? A plane electomagnetic wave travels in vaccum along z-direction. What can you say about the directions of its [...]
Rain is falling vertically downwards with velocity 4 m/s. A man is moving horizontal with velocity 3 m/s. The velocity of rain respect to the man is
08
Sep
Rain is falling vertically downwards with velocity 4 m/s. A man is moving horizontal with velocity 3 m/s. The velocity of rain respect to the man is Rain is falling vertically downwards with velocity 4 m/s. A man is moving horizontal with velocity 3 m/s. The velocity of rain respect to the man is September [...]
A coil of inductance 50 H and resistance 100 ohm is connected to a 240 V, 50 Hz ac supply. What is the maximum current in the coil and the time lag between voltage maximum and current maximum?
08
Sep
A coil of inductance 50 H and resistance 100 ohm is connected to a 240 V, 50 Hz ac supply. What is the maximum current in the coil and the time lag between voltage maximum and current maximum? 50 Hz ac supply. What is the maximum current in the coil and the time lag between [...]
A car A is going north east at 80 kmh^-1 and another car B is going south east with a velocity of 60kmh^−1. the direction of the velocity of A relative to B makes an angle with the north equal to:
08
Sep
A car A is going north east at 80 kmh^-1 and another car B is going south east with a velocity of 60kmh^−1. the direction of the velocity of A relative to B makes an angle with the north equal to: A car A is going north east at 80 kmh^-1 and another car B [...]