B
Figure 7.88 shows a stretched string of length L and pipes of length L,2L,L/2andL/2 in options (a) , (b), (c ) and (d) respectively . The string ‘s tension is adjusted until the speed of waves on the string equals the speed of sound waves in the air . The fundamental mode of oscillation is the set up on the string . In which pipe will the sound produced by the string cause resonance ?
29
Oct
Figure 7.88 shows a stretched string of length L and pipes of length L,2L,L/2andL/2 in options (a) , (b), (c ) and (d) respectively . The string ‘s tension is adjusted until the speed of waves on the string equals the speed of sound waves in the air . The fundamental mode of oscillation is [...]
Four curves A, B, C and D are drawn in the given figure for a given amount of gas. The curves which represent adiabatic and isothermal change are
28
Oct
Four curves A, B, C and D are drawn in the given figure for a given amount of gas. The curves which represent adiabatic and isothermal change are B C and D are drawn in the given figure for a given amount of gas. The curves which represent adiabatic and isothermal change are Four curves [...]
Two Carnot’s engines A and B are operated in series. The first one, A, receives heat at 800 K and rejects to a reservoir at temperature T. The second engine, B, receives the heat
28
Oct
Two Carnot’s engines A and B are operated in series. The first one, A, receives heat at 800 K and rejects to a reservoir at temperature T. The second engine, B, receives the heat A) B receives heat at 800 K and rejects to a reservoir at temperature T. The second engine receives the heat [...]
Find out the values of co-ordinates at point A, B, C in terms of pressure, volume and temperature and draw curve.
27
Oct
Find out the values of co-ordinates at point A, B, C in terms of pressure, volume and temperature and draw curve. B C in terms of pressure Find out the values of co-ordinates at point A volume and temperature and draw curve. October 27, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
A composite block is made of slabs A, B, C, D and E of different thermal conductivities (given in terms of a constant K ) and sizes (given in terms of length, L) as shown in the figure.
27
Oct
A composite block is made of slabs A, B, C, D and E of different thermal conductivities (given in terms of a constant K ) and sizes (given in terms of length, L) as shown in the figure. A composite block is made of slabs A B C D and E of different thermal conductivities [...]
The density of a rod AB increases linearly from A to B its midpoint is O and its centre of mass is at C. four axes pass through A, B, O and C, all perpendicular to the length of the rod. The moment of inertial of the rod about these axes are IA,IB,IO and IC respectively.
23
Oct
The density of a rod AB increases linearly from A to B its midpoint is O and its centre of mass is at C. four axes pass through A, B, O and C, all perpendicular to the length of the rod. The moment of inertial of the rod about these axes are IA,IB,IO and IC [...]
For the given combination of gates, if the logic states of inputs A, B, C are as follows A = B = C = 0 and A = B = 1, C = 0, then the logic states of output D are
22
Oct
For the given combination of gates, if the logic states of inputs A, B, C are as follows A = B = C = 0 and A = B = 1, C = 0, then the logic states of output D are B c ≠ 0 C are as follows A = B = C [...]
A cart is moving horizontally along a straight line with constant speed 30ms^−1. A particle is to be fired vertically upwards from the moving cart in such a way that it returns to the cart at the same point from where it was projected after the cart has moved 80m. At what speed (relative to the cart) must the projectile be fired? (Take g=10ms^−2)
20
Oct
A cart is moving horizontally along a straight line with constant speed 30ms^−1. A particle is to be fired vertically upwards from the moving cart in such a way that it returns to the cart at the same point from where it was projected after the cart has moved 80m. At what speed (relative to [...]
Six particles situated at the corners of a regular hexagon of side a move at a constant speed v. Each particle maintains a direction towards the particle at the next corner. The time the particles will take to meet each other.
20
Oct
Six particles situated at the corners of a regular hexagon of side a move at a constant speed v. Each particle maintains a direction towards the particle at the next corner. The time the particles will take to meet each other. B B along BC C along CD and D along DA. At which time [...]
Four particles A, B, C and D are situated at the vertices of a rectangle of sides d at t = 0. Each of the particle moves with constant speed v. A always has its velocity along AB, B along BC, C along CD and D along DA. At which time will the particles meet each other ?
20
Oct
Four particles A, B, C and D are situated at the vertices of a rectangle of sides d at t = 0. Each of the particle moves with constant speed v. A always has its velocity along AB, B along BC, C along CD and D along DA. At which time will the particles meet [...]