BITSAT Practice Test - 9 - JEE MCQ
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30 Questions MCQ Test - BITSAT Practice Test - 9
BITSAT Practice Test - 9 for JEE 2024 is part of JEE preparation. The BITSAT Practice Test - 9 questions and answers have been prepared
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BITSAT Practice Test - 9 - Question 2
The first line in the Lyman series has wavelength λ. The wavelength of the first line in Balmer series is
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BITSAT Practice Test - 9 - Question 3
If M = mass, L =length,T =time and I = electric current then the dimensional formula for electrical resistance R is given by
BITSAT Practice Test - 9 - Question 4
A strip of copper and another of germanium are cooled from room temperature to 80 K. The resistance of
BITSAT Practice Test - 9 - Question 5
When the speed of electrons increases, then the value of its specific charge
BITSAT Practice Test - 9 - Question 7
In an A.C. circuit, the current is given by i = 5 sin (100t - π/2) ampere and the A.C. potential is V = 200 sin (100t) volt. Then the power consumption is
BITSAT Practice Test - 9 - Question 8
An inductance L having a resistance R is connected to an alternating source of angular frequency ω. The quality factor (Q) of the inductance is L/R
BITSAT Practice Test - 9 - Question 9
The two point charges of 2C are -6C attract each other with a force of 12N. A -ve charge of 2C is added to each of the above charges. Now the force between them is
BITSAT Practice Test - 9 - Question 10
A charge q is located at the centre of a cube. The electric flux through any face is
BITSAT Practice Test - 9 - Question 11
To aviod slipping while walking on ice, one should take smaller steps because of the
BITSAT Practice Test - 9 - Question 12
The time-period of a satellite of earth is 5 h. If the separation between the earth and satellite is increased to 4 times the previous value, the new time-period will become
BITSAT Practice Test - 9 - Question 13
An electric current passes through a long straight copper wire. At a distance 5 cm from the straight wire, the magnetic field is B. The magnetic field at 20 cm from the straight wire would be
BITSAT Practice Test - 9 - Question 14
A 20 cm long capillary tube is dipped in water. The water rises up to 8 cm. If entire arrangement is put in a freely elevator, the length of water column in the capillary tube will be
BITSAT Practice Test - 9 - Question 15
A thin rectangular magnet suspended freely has a period of oscillation equal to T. Now it is broken into two equal halves (each having half of the original length) and one piece is made to oscillate freely in the same field. If its period of oscillation is T ′ the ratio T ′/T is
BITSAT Practice Test - 9 - Question 16
The ratio of tangential stress to the shearing strain is called
BITSAT Practice Test - 9 - Question 17
Thiefs car is moving with a speed of 10 ms⁻1. A police van chasing this car with a speed of 5 ms⁻1 fires a bullet at the thief's car with muzzle velocity 72 km/h. Find the speed with which the bullet will hit the car.
BITSAT Practice Test - 9 - Question 18
The angular velocity of a wheel is 70 rad/sec. If the radius of the wheel is 0.5 m, then linear velocity of the wheel is
BITSAT Practice Test - 9 - Question 19
A boy of 50 kg is in a lift moving down with an accleration 9.8 ms⁻2. The apparent weight of the body is (g=9.8 ms⁻2)
BITSAT Practice Test - 9 - Question 20
A particle of mass m is projected with velocity ν making an angle of 45o with the horizontal . When the particle lands on the level ground the magnitude of the changes in its momentum will be
BITSAT Practice Test - 9 - Question 21
A chimpanzee, swinging on a swing in a sitting position, stands up suddenly. The time period will
BITSAT Practice Test - 9 - Question 22
A pendulum bob has a speed of 3 m/s at its lowest position. The pendulum is 0.5 m long. The speed of the bob, when the length makes an angle of 60o to the verticle, will be (If g=10 m/s2)
BITSAT Practice Test - 9 - Question 24
Three identical metal balls each of radius r are placed touching each other on a horizontal surface such that an equilateral triangle is formed when centers of three balls are joined. The centre of mass of system is located at
BITSAT Practice Test - 9 - Question 25
Two identical particles move towards eachother with velocity 2ν and ν respectively. The velocity of centre of mass is
BITSAT Practice Test - 9 - Question 27
On giving 220 V to a resistor the power dissipated is 40 W then value of resistance is
BITSAT Practice Test - 9 - Question 28
When there is no heat change from surroundings in a system, then the process taking place is
BITSAT Practice Test - 9 - Question 29
On opening the door of refrigerator, the room temperature
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