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A whistle of frequency f0 = 1300 Hz is dropped from a height H = 505 m above the ground. At the same time, a detector is projected upwards with velocity v = 50 m/s
08
Nov
A whistle of frequency f0 = 1300 Hz is dropped from a height H = 505 m above the ground. At the same time, a detector is projected upwards with velocity v = 50 m/s a detector is projected upwards with velocity v = 50 m/s A whistle of frequency f0 = 1300 Hz is [...]
A trolley moves in horizontal direction with acceleration a. A A simple pendulum of length l is suspended from the roof of the trolley. The time period of the pendulum will be
08
Nov
A trolley moves in horizontal direction with acceleration a. A A simple pendulum of length l is suspended from the roof of the trolley. The time period of the pendulum will be A trolley moves in horizontal direction with acceleration a. A A simple pendulum of length l is suspended from the roof of the [...]
A mass of 4kg suspended from a spring of force constant 800 Nm^−1 executes simple harmonic oscillations. If the total energy of the oscillator is 4J, the maximum acceleration (in ms^−2) of the mass is
08
Nov
A mass of 4kg suspended from a spring of force constant 800 Nm^−1 executes simple harmonic oscillations. If the total energy of the oscillator is 4J, the maximum acceleration (in ms^−2) of the mass is A mass of 4kg suspended from a spring of force constant 800 Nm^−1 executes simple harmonic oscillations. If the total [...]
A locomotive approaching a crossing at a speed of 80 mi/h sounds a whistle of frequency 400 Hz when 1 mi from the crossing. There is no wind, and the speed of sound in air is
08
Nov
A locomotive approaching a crossing at a speed of 80 mi/h sounds a whistle of frequency 400 Hz when 1 mi from the crossing. There is no wind, and the speed of sound in air is A locomotive approaching a crossing at a speed of 80 mi/h sounds a whistle of frequency 400 Hz when [...]
Figure shows an arrangement of four identical rectangular plates A, B , C , and D each of area S. Find the charges appearing on each face ( from left to right ) of the plates. Ignore the seperation between the plates in comparission to the to the plate dimensions.
08
Nov
Figure shows an arrangement of four identical rectangular plates A, B , C , and D each of area S. Find the charges appearing on each face ( from left to right ) of the plates. Ignore the seperation between the plates in comparission to the to the plate dimensions. and D each of area [...]
A body of mass 4.9 kg hangs from a spring and oscillates with a period 0.5s. On the removal of the body, the spring is shortened by (Take g = 10ms^−2 ,π^2 = 10)
08
Nov
A body of mass 4.9 kg hangs from a spring and oscillates with a period 0.5s. On the removal of the body, the spring is shortened by (Take g = 10ms^−2 ,π^2 = 10) A body of mass 4.9 kg hangs from a spring and oscillates with a period 0.5s. On the removal of the [...]
A source of sonic oscillations with frequency n = 1700 Hz and a receiver are located on the same normal to a wall. Both the source and receiver are stationary, and the wall recedes
08
Nov
A source of sonic oscillations with frequency n = 1700 Hz and a receiver are located on the same normal to a wall. Both the source and receiver are stationary, and the wall recedes A source of sonic oscillations with frequency n = 1700 Hz and a receiver are located on the same normal to [...]
A metal wire of length L1 and area of cross-section A is attached to a rigid support. Another metal wire of length L2 and of the same cross-sectional area is attached to the free end of the first wire. A body of mass M is then suspended from the free end of the second wire. If Y1 and Y2 are Young’s modules of the wires respectively, the effective force constant of the system of two wires is:
08
Nov
A metal wire of length L1 and area of cross-section A is attached to a rigid support. Another metal wire of length L2 and of the same cross-sectional area is attached to the free end of the first wire. A body of mass M is then suspended from the free end of the second wire. [...]
A parallel plate capacitor is charged as shown (Q is given). A metal slab with the total charge +Q is placed inside the capacitor as shown. The thickness of the slab is d. The distance between the top plate and the top of the slab is 2d, and the distance between the bottom plate and the botthom of the slab is d. Each plate is grounded through a galvanometer as shown . Find the charge that passes through each galvanometer after both switches are closed simultaneously.
08
Nov
A parallel plate capacitor is charged as shown (Q is given). A metal slab with the total charge +Q is placed inside the capacitor as shown. The thickness of the slab is d. The distance between the top plate and the top of the slab is 2d, and the distance between the bottom plate and [...]
In figure, half of teh space between the plates of a parallel plate capacitor is filled with dielectric material of constant K. Then which which of the plots are possible ?
08
Nov
In figure, half of teh space between the plates of a parallel plate capacitor is filled with dielectric material of constant K. Then which which of the plots are possible ? half of teh space between the plates of a parallel plate capacitor is filled with dielectric material of constant K. Then which which of [...]