BITSAT Physics Work Energy and Power MCQs
Question: A particle of mass m moving in the x direction with speed 2v is hit by another particle of mass 2m moving in the y direction with speed v. If the collision is perfectly inelastic, the percentage loss in the energy during the collision is close to a) 56% b) 62% c…
BITSAT Physics Waves MCQs
Question: A tuning fork of frequency 392 Hz, resonates with 50 cm length of a string under tension (T). If length of the string is decreased by 2%, keeping the tension constant, the number of beats heard when the string and the tuning fork made to vibrate simultaneously is…
BITSAT Physics Wave Optics MCQs
Question: A telescope has an objective lens of 10 cm diameter and is situated at a distance of one kilometer from two objects. The minimum distance between these two objects, which can be resolved by the telescope, when the mean wavelength of light is 5000 Å, is of the…
BITSAT Physics Units and Measurements MCQs
Question: In the formula X = 3 YZ2 ,X and Z have dimensions of capacitance and magnetic induction respectively. The dimensions of Y in MKSA system are : a) [M–3L–2T–2A–4] b) [ML–2] c) [M–3L–2A4T8] d) [M–3L2A4T4] Answer: [M–3L–2A4T8] Question: The frequency of vibration…
BITSAT Physics Thermodynamics MCQs
Question: A cyclic process ABCD is shown in the figure PV diagram. Which of the following curves represent the same process? a) b) c) d) Answer: Question: One mole of an ideal gas is taken from state A to state B by three different processes, (i) ACB (ii) ADB…
BITSAT Physics Thermal Properties Of Matter MCQs
Question: A steel wire of length ‘L’ at 40°C is suspended from the ceiling and then a mass ‘m’ is hung from its free end. The wire is cooled down from 40°C to 30°C to regain its original length ‘L’. The coefficient of linear thermal expansion of the steel is 10–5 /° C,…
BITSAT Physics System Of Particles and Rotational Motion MCQs
Question: A thin but rigid semicircular wire frame of radius r is hinged at O and can rotate in its own vertical plane. A smooth peg P starts from O and moves horizontally with constant speed v0, lifting the frame upward as shown in figure. Find the angular velocity ω of…
BITSAT Physics Semiconductor Electronics Materials Devices and Simple Circuits MCQs
Question: In the circuit given below, V(t) is the sinusoidal voltage source, voltage drop VAB(t) across the resistance R is a) Is half wave rectified b) Is full wave rectified c) Has the same peak value in the positive and negative half cycles d) Has different peak values…
BITSAT Physics Ray Optics and Optical Instruments MCQs
Question: Two plano-concave lenses (1 and 2) of glass of refractive index 1.5 have radii of curvature 25 cm and 20 cm. They are placed in contact with their curved surface towards each other and the space between them is filled with liquid of refractive index 4/3. Then the…
BITSAT Physics Oscillations MCQs
Question: The following figure depict a circular motion. The radius of the circle, the period of revolution, the initial position and the sense of revolution are indicated on the figure. The simple harmonic motion of the x-projection of the radius vector of the rotating…
BITSAT Physics Nuclei MCQs
Question: After two hours, one-sixteenth of the starting amount of a certain radioactive isotope remained undecayed. The half life of the isotope is a) 15 minutes b) 30 minutes c) 45 minutes d) 4 hours Answer: 30 minutes Question: When 92U235 undergoes fission, 0.1% of…
BITSAT Physics Moving Charges and Magnetism MCQs
Question: Two very long, straight, parallel wires carry steady currents I and -I respectively. The distance between the wires is d. At a certain instant of time, a point charge q is at a point equidistant from the two wires, in the plane of the wires. Its instantaneous…
BITSAT Physics Motion In A Plane MCQs
Question: Given that A + B = R and A = B = R. What should be the angle between A and B ? a) 0 b) π/3 c) 2π/3 d) π Answer: 2π/3 Question: Two projectiles A and B thrown with speeds in the ratio 1 : acquired the same heights. If A is thrown at an angle of 45° with the…
BITSAT Physics Motion In A Straight Line MCQs
Question: A frictionless wire AB is fixed on a sphere of radius R. A very small spherical ball slips on this wire. The time taken by this ball to slip from A to B is a) b) c) d) Answer: Question: A 2 m wide truck is moving with a uniform speed v0 = 8 m/s…