From 2020 AIIMS exam has been merged with NEET.
AIIMS MBBS 2018 Higher Questions and Answers with Solutions Part 2
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Q: 10. In the diagram find out the current through :
Find Out the Current Through
Title: Q-10-Image of find out the Current Through
Description: Q-10-Image of find out the Current Through
Ans.
Solution:
Find Out the Current Through
Title: Q-10-1-Image of find out the Current Through
Description: Q-10-1-Image of find out the Current Through
Let so
So,
.
Q: 11. An transistor is connected in common emitter configuration in which collector supply is and the voltage drop across the load resistance of connected in the collector circuit is. If current amplification factor is , If the internal resistance of the transistor is , then which of the following options is incorrect.
The Diagram of Collector Circuit
Title: Q-11-The Diagram of Collector Circuit
Description: Q-11- The Diagram of Collector Circuit
Solution:
The circuit arrangement is shown in figure. Collector current,
Now
Current gain
Or
Q: 12. In a hydrogen spectrum third line of Ballmer’s series having wavelength . Find the binding energy of the ground state.
Solution:
Q: 13. A wire of some length is bent in the form of a ring of diameter 2a having self-inductance L, then L will depend upon a as:
Solution:
Now,
So,
Q: 14. What will be the position of centre of mass of a half disc as shown:
Mass of Half Disc
Title: Q-11-The Image of Mass of Half Disc
Description: Q-11-The Image of Mass of Half Disc
(1)
(2)
(3)
(4)
Ans. (2)
Solution:
Fact that C.O.M. of hart disk is at distance of from canter
Q: 15. In a LCR series resonating circle circuit. Give the value of average power loss:
Solution:
Average power loss
Q: 16. Find the minimum wavelength of X-rays tube emitted by X-ray tube, which is operating at . Accelerating voltage.
Solution:
Q: 17. A galvanometer gives full scale deflection of volt when acting like a voltmeter when connected in series with resistance. The same galvanometer gives . Full scale deflection when acting like an ammeter when connected with shunt resistance of value in parallel. Find out the resistance of galvanometer.
Solution:
The Resistance of Galvanometer
Title: Q-17-Find out the Resistance of Galvanometer
Description: Q-17-Find out the Resistance of Galvanometer
The Resistance of Galvanometer
Title: Q-17-Find out the Resistance of Galvanometer
Description: Q-17-Find out the Resistance of Galvanometer
Q: 18. A uniformly charged non conducting disc with surface charge density having radius. Then find the value of electric field intensity at a point on the perpendicular bisector at a distance of.
The Non-Conducting Disc
Title: Q-18-Image of the Non-Conducting Disc
Description: Q-18- Image of the Non-Conducting Disc
Solution:
Q: 19. Two small balls, each having equal positive charge are suspended by two insulating strings of equal length L from a hook fixed to a stand. If mass of each & total angle between the two strings is , then find the charge on each ball.
The Charge on Each Ball
Title: Q-19-Image of find the Charge on each Ball
Description: Q-19-1-Image of find the Charge on each Ball
Solution:
Find the Charge on Each Ball
Title: Q-19-Image of find the Charge on each Ball
Description: Q-19-1-Image of find the Charge on each Ball