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June 25th, 2014, 03:55 PM
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IIT JEE Physics Model Questions and answers

Can you give me question paper with answers for IIT Joint entrance examination for Physics subject in PDF file format ?

Here I am giving you question paper with answers for IIT Joint entrance examination for Physics subject in PDF file attached with it so you can get it easily.

24. A police car with a siren of frequency 8 kHz is moving with uniform velocity 36 km/hr towards a tall
building which reflects the sound waves. The speed of sound in air is 320 m/s. The frequency of the siren
heard by the car driver is
(A) 8.50 kHz (B) 8.25 kHz
(C) 7.75 kHz (D) 7.50 kHZ
Sol. (A)

25. The wavelength of the first spectral line in the Balmer series of hydrogen atom is 6561 Å. The wavelength
of the second spectral line in the Balmer series of singly-ionized helium atom is
(A) 1215 Å (B) 1640 Å
(C) 2430 Å (D) 4687 Å
Sol. (A)

29. A meter bridge is set-up as shown, to determine an
unknown resistance ‘X’ using a standard 10 ohm resistor.
The galvanometer shows null point when tapping-key is at
52 cm mark. The end-corrections are 1 cm and 2 cm
respectively for the ends A and B. The determined value of
‘X’ is
(A) 10.2 ohm (B) 10.6 ohm
(C) 10.8 ohm (D) 11.1 ohm
Sol. (B)

30. A ball of mass (m) 0.5 kg is attached to the end of a string having length
(L) 0.5 m. The ball is rotated on a horizontal circular path about vertical
axis. The maximum tension that the string can bear is 324 N. The
maximum possible value of angular velocity of ball (in radian/s) is
(A) 9 (B) 18
(C) 27 (D) 36
Sol. (D)


34. An electron and a proton are moving on straight parallel paths with same velocity. They enter a semiinfinite
region of uniform magnetic field perpendicular to the velocity. Which of the following
statement(s) is / are true?
(A) They will never come out of the magnetic field region.
(B) They will come out travelling along parallel paths.
(C) They will come out at the same time.
(D) They will come out at different times.
Sol. (B, D)





Attached Files
File Type: pdf IIT JEE Physics solved paper.pdf (551.5 KB, 106 views)

Last edited by Neelurk; February 15th, 2020 at 10:25 AM.
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