Question Answers
Sahay Sir > Question Answers
Two blocks are connected by a string as shown in the diagram. The upper block is hung by another string. A force F applied on the upper string produces an acceleration of 2m/s2 in the upward direction in both the blocks. If T and T’ be the tensions in the two parts of the string, then:
08
Sep
Two blocks are connected by a string as shown in the diagram. The upper block is hung by another string. A force F applied on the upper string produces an acceleration of 2m/s2 in the upward direction in both the blocks. If T and T’ be the tensions in the two parts of the string, [...]
Two masses m1 and m2 are connected by a light string passing over a smooth pulley. When set free m1 moves downward by 2 m in 2 s. The ratio m1/m2 is:
08
Sep
Two masses m1 and m2 are connected by a light string passing over a smooth pulley. When set free m1 moves downward by 2 m in 2 s. The ratio m1/m2 is: Two masses m1 and m2 are connected by a light string passing over a smooth pulley. When set free m1 moves downward by [...]
A force f1 acts on a particle, so as to accelerate it from rest to a velocity v. If the force f1 is replaced by f2, which decelerates it to rest,
08
Sep
A force f1 acts on a particle, so as to accelerate it from rest to a velocity v. If the force f1 is replaced by f2, which decelerates it to rest, A force f1 acts on a particle so as to accelerate it from rest to a velocity v. If the force f1 is replaced [...]
A body of mass 1 kg is moving towards east with a uniform speed of 2 m/s. A force of 2 N is applied to it towards north. The magnitude of the displacement of the body 2 s after the force is applied is
08
Sep
A body of mass 1 kg is moving towards east with a uniform speed of 2 m/s. A force of 2 N is applied to it towards north. The magnitude of the displacement of the body 2 s after the force is applied is A body of mass 1 kg is moving towards east with [...]
A radio receiver antenna that is 2 m long is oriented along the direction of the electromagnetic wave and receives a signal of intensity 5 x 10 ^-16 W/m^2. The maximum instanteous potential difference across the two ends of the antenna is
08
Sep
A radio receiver antenna that is 2 m long is oriented along the direction of the electromagnetic wave and receives a signal of intensity 5 x 10 ^-16 W/m^2. The maximum instanteous potential difference across the two ends of the antenna is A plane electromagnetic wave is incident on a material surface. If the wave [...]
A ball of mass 2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m while applying the force and the ball goes upto 2 m height further, find the magnitude of the force. (g = 10 ms^−1)
08
Sep
A ball of mass 2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m while applying the force and the ball goes upto 2 m height further, find the magnitude of the force. (g = 10 ms^−1) A ball of mass 2 kg is thrown vertically upwards [...]
A car moving with a velocity of 10 m/s can be stopped by the application of a constant force F in a distance of 20 m. If the velocity of the car is 30 m/s. It can be stopped by this force in:-
08
Sep
A car moving with a velocity of 10 m/s can be stopped by the application of a constant force F in a distance of 20 m. If the velocity of the car is 30 m/s. It can be stopped by this force in:- A car moving with a velocity of 10 m/s can be stopped [...]
An electromagnetic wave going through vaccum is described by E = Eo sin (Kx – omega t0 : B = Bo sin (Kx – omerga t ). which of the following equation is true
08
Sep
An electromagnetic wave going through vaccum is described by E = Eo sin (Kx – omega t0 : B = Bo sin (Kx – omerga t ). which of the following equation is true An electromagnetic wave going through vaccum is described by E = Eo sin (Kx - omega t0 : B = Bo [...]
A body of 5 kg is moving with a velocity of 20 m/s . If a force of 100 N is applied on it for 10 s in the same direction as its velocity, what will now be the velocity of body ?
08
Sep
A body of 5 kg is moving with a velocity of 20 m/s . If a force of 100 N is applied on it for 10 s in the same direction as its velocity, what will now be the velocity of body ? A body of 5 kg is moving with a velocity of 20 [...]
An electromagnetic wave, going through vaccum is described by E =Eo sin( kx – omega t). Which of the following is independent of wave length
08
Sep
An electromagnetic wave, going through vaccum is described by E =Eo sin( kx – omega t). Which of the following is independent of wave length An electromagnetic wave going through vaccum is described by E =Eo sin( kx - omega t). Which of the following is independent of wave length September 8, 2020 Category: Uncategorised [...]