JEE-ADVANCED SERIES Physics
Radioactivity
12 previous year questions.
Volume: 12 Ques
Yield: Medium
High-Yield Trend
10
2024 2
2022 Chapter Questions 12 MCQs
01
PYQ 2022
easy
physics ID: jee-adva
The minimum kinetic energy needed by an alpha particle to cause the nuclear reaction in a laboratory frame is n (in MeV). Assume that is at rest in the laboratory frame. The masses of can be taken to be 16.006u,4.003u, 1.008u and 19.003u, respectively, where 1u=930MeVc−2. The value of n is ________
02
PYQ 2022
medium
physics ID: jee-adva
In a radioactive decay chain reaction, nucleus decays into nucleus. The ratio of the number of to number of particles emitted in this process is _____
03
PYQ 2024
medium
physics ID: jee-adva
The bright fringe above the point oscillates with time between two extreme positions. The separation between these two extreme positions, in micrometer ( ), is.
04
PYQ 2024
medium
physics ID: jee-adva
The maximum speed in at which the bright fringe will move is .
05
PYQ 2024
medium
physics ID: jee-adva
If the collision occurs at time , the value of will be .
06
PYQ 2024
medium
physics ID: jee-adva
If the collision occurs at time , then the value of will be:
07
PYQ 2024
medium
physics ID: jee-adva
The dimensions of a cone are measured using a scale with a least count of 2 mm. The diameter of the base and the height are both measured to be . The maximum percentage error in the determination of the volume is \_\_\_\_.
08
PYQ 2024
easy
physics ID: jee-adva
A table tennis ball has radius and mass . It is slowly pushed down into a swimming pool to a depth below the water surface and then released from rest. It emerges from the water surface at speed , without getting wet, and rises to a height . Which of the following option(s) is(are) correct?
1
The work done in pushing the ball to the depth is
2
If we neglect the viscous force in water, then the speed
3
If we neglect the viscous force in water, then the height
4
The ratio of the magnitudes of the net force excluding the viscous force to the maximum viscous force in water is
09
PYQ 2024
easy
physics ID: jee-adva
A spherical soap bubble inside an air chamber at pressure has a certain radius so that the excess pressure inside the bubble is . Now, the chamber pressure is reduced to so that the bubble radius and its excess pressure change. In this process, all the temperatures remain unchanged. Assume air to be an ideal gas and the excess pressure in both the cases to be much smaller than the chamber pressure. The new excess pressure in is \_\_\_\_.
10
PYQ 2024
hard
physics ID: jee-adva
A ball is thrown from the location of a horizontal playground with an initial speed at an angle from the -direction. The ball is to be hit by a stone, which is thrown at the same time from the location . The stone is thrown at an angle from the -direction with a suitable initial speed. For a fixed , when , the stone hits the ball after time , and when , it hits the ball after time . In such a case, is \_\_\_\_.
11
PYQ 2024
medium
physics ID: jee-adva
A region in the form of an equilateral triangle (in x-y plane) of height has a uniform magnetic field pointing in the -direction. A conducting loop PQR, in the form of an equilateral triangle of the same height , is placed in the x-y plane with its vertex at in the orientation shown in the figure. At , the loop starts entering the region of the magnetic field with a uniform velocity along the -direction. The plane of the loop and its orientation remain unchanged throughout its motion.
Which of the following graphs best depicts the variation of the induced emf ( ) in the loop as a function of the distance ( ) starting from ?
Which of the following graphs best depicts the variation of the induced emf ( ) in the loop as a function of the distance ( ) starting from ?
12
PYQ 2024
medium
physics ID: jee-adva
An infinitely long thin wire, having a uniform charge density per unit length of , is passing through a spherical shell of radius , as shown in the figure. A charge is distributed uniformly over the spherical shell. If the configuration of the charges remains static, the magnitude of the potential difference between points and , in Volt, is ______. Ignore the area pierced by the wire.
