Home › Quizzes › JEE › Physics
JEE Physics PYQ — Optics & Modern Physics
JEE Physics • 10 questions • Free on ExamBattle
Practice Questions
Q1
[JEE Mains 2023] In Young's double slit experiment, the slit separation is 0.1 mm and wavelength of light is 600 nm. The fringe width on a screen 1 m away is:
- A. 3.0 mm
- B. 6.0 mm
- C. 1.5 mm
- D. 0.6 mm
Q2
[JEE Mains 2022] The de-Broglie wavelength of an electron accelerated through a potential of 100 V is approximately:
- A. 0.123 nm
- B. 1.23 nm
- C. 0.0123 nm
- D. 12.3 nm
Q3
[JEE Mains 2023] In photoelectric effect, the stopping potential for a metal with work function 2 eV when illuminated by light of frequency 10¹⁵ Hz is (h = 6.6×10⁻³⁴ J·s):
- A. 2.14 V
- B. 4.14 V
- C. 1.14 V
- D. 6.14 V
Q4
[JEE Mains 2022] A lens of focal length 20 cm forms a real image of an object placed at 30 cm from it. The image distance is:
- A. 60 cm
- B. 40 cm
- C. 12 cm
- D. 30 cm
Q5
[JEE Mains 2021] The ratio of radii of nuclei ²⁷Al and ¹²⁵Te is:
- A. 3:5
- B. 27:125
- C. 5:3
- D. 1:2
Q6
[JEE Mains 2023] A concave mirror of focal length 10 cm forms a virtual image of an object 5 cm in front of it. The image is located at:
- A. 10 cm behind the mirror
- B. 10 cm in front
- C. 5 cm behind
- D. 20 cm behind
Attempt this quiz free at ExamBattle. Sign in to earn a score and rank on the leaderboard.