Physics-
General
Easy
Question
Figure shows the electric lines of force emerging from a charged body. If the electric field at ‘A’ and ‘B’ are EA and EB respectively and if the displacement between ‘A’ and ‘B’ is ‘r’ then
The correct answer is:
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Given below is one of the types of ecological pyramids. This type represents –
Given below is one of the types of ecological pyramids. This type represents –
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Four charges are arranged at the corners of a square ABCD as shown in the figure. The force on the positive charge kept at the centre ‘O’ is
Four charges are arranged at the corners of a square ABCD as shown in the figure. The force on the positive charge kept at the centre ‘O’ is
physics-General
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A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity 
as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The time interval between minimum and maximum frequency as received by the detector
A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The time interval between minimum and maximum frequency as received by the detector
physics-General
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A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The time at which the detector will hear the maximum frequency for the 1st time
A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The time at which the detector will hear the maximum frequency for the 1st time
physics-General
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A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The frequency as received by the detector when it rotates by an angle 
A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The frequency as received by the detector when it rotates by an angle
physics-General
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Two speakers 
driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s If he continous to walk along the same line how many more maxima can he hear
Two speakers driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s If he continous to walk along the same line how many more maxima can he hear
physics-General
physics-
Two speakers driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s The angle θ at which he will hear maximum intensity for first time?
Two speakers driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s The angle θ at which he will hear maximum intensity for first time?
physics-General
physics-
Two speakers driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s The angle θ at which intensity of sound drop to a minimum for the first time
Two speakers driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s The angle θ at which intensity of sound drop to a minimum for the first time
physics-General
physics-
When a composite wire is made by joining two wires as shown in figure and possible frequencies of this wire is asked (both ends fixed) then the lowest frequency is that at which individual lowest frequencies of the two wires are equal 
The lowest frequency such that the junction is an antinode is
When a composite wire is made by joining two wires as shown in figure and possible frequencies of this wire is asked (both ends fixed) then the lowest frequency is that at which individual lowest frequencies of the two wires are equal The lowest frequency such that the junction is an antinode is
physics-General
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When a composite wire is made by joining two wires as shown in figure and possible frequencies of this wire is asked (both ends fixed) then the lowest frequency is that at which individual lowest frequencies of the two wires are equal The lowest frequency such that the junction is a node is
When a composite wire is made by joining two wires as shown in figure and possible frequencies of this wire is asked (both ends fixed) then the lowest frequency is that at which individual lowest frequencies of the two wires are equal The lowest frequency such that the junction is a node is
physics-General
chemistry-
The mass of neutron is of the order of:
The mass of neutron is of the order of:
chemistry-General
chemistry-
The energy of the electron in the first orbit of 
is 
The energy of the election in the first orbit of hydrogen would be:
The energy of the electron in the first orbit of is The energy of the election in the first orbit of hydrogen would be:
chemistry-General
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A heavy but uniform rope of length L is suspended from a ceiling A particle is dropped from the ceiling at the same instant the bottom end is given the jerk where will the particle meet the pulse measured from bottom?
A heavy but uniform rope of length L is suspended from a ceiling A particle is dropped from the ceiling at the same instant the bottom end is given the jerk where will the particle meet the pulse measured from bottom?
physics-General
physics-
A heavy but uniform rope of length L is suspended from a ceiling If the rope is given a sudden sideways jerk at the bottom, how long will it take for the pulse to reach the ceiling?
A heavy but uniform rope of length L is suspended from a ceiling If the rope is given a sudden sideways jerk at the bottom, how long will it take for the pulse to reach the ceiling?
physics-General
physics-
A heavy but uniform rope of length L is suspended from a ceiling Find the velocity of transverse wave travelling on the string as a funcition of the distance(x) from the lower end
A heavy but uniform rope of length L is suspended from a ceiling Find the velocity of transverse wave travelling on the string as a funcition of the distance(x) from the lower end
physics-General
