List of top Physics Questions asked in BITSAT

Water is flowing through a horizontal tube having cross-sectional areas of its two ends beings $A$ and $A$' such that the ratio $A/A$' is $5$. If the pressure difference of water between the two ends is $3 \times 10^5\, N m^{-2}$, the velocity of water with which it enters the tube will be (neglect gravity effects)

speeds of $20\, m/s$ and $15\, m/s$ relative to the ground. The first train sounds a whistle of frequency $600\, Hz$. The frequency of the whistle heard by a passenger in the second train before the train meets, is (the speed of sound in air is 340 m/s)

Which one of the following graphs represents the variation of electric field with distance $r$ from the center of a charged spherical conductor of radius $R$?

The mass of an H₂ molecule is 3.32×10⁻²⁷ kg. If 10²³ hydrogen molecules per second strike 2 cm² of a wall at an angle of 45° with the normal while moving at a speed of 10⁵ cm/s, the pressure exerted on the wall is nearly:

Water of volume 2 liters in a container is heated with a coil of 1 kW at 27°C. The lid is open, and energy dissipates at a rate of 160 J/s. In how much time will the temperature rise from 27°C to 77°C? (Given specific heat of water = 4.2 kJ/kgK)

A 10V battery with internal resistance 1Ω and a 15V battery with internal resistance 0.6Ω are connected in parallel to a voltmeter (see figure). The reading in the voltmeter will be close to:

In the circuit shown, the symbols have their usual meanings. The cell has emf E. X is initially joined to Y for a long time. Then, X is joined to Z. The maximum charge on C at any later time will be:

A point object O is placed in front of a glass rod having spherical end of radius of curvature 30cm. The refractive index of glass is μ = 1.5. The image would be formed at:

The dipole moment of the given charge distribution is:

Figure shows a capillary rise H. If air is blown through the horizontal tube as shown, then rise in capillary tube will be:

In the following P-V diagram of an ideal gas, two adiabates and two isotherms at T₁=300K and T₂=200K are shown. Values are VA=2, VB=8, VC=16. Find VD.