Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. JAMB
  4. /
  5. Physics
  6. /
  7. 2021
  8. /
  9. Q0
Question 0

The velocities of light in air and glass are 3.0 x 10\(^8\)ms\(^{-1}\) and 2.0 x 10\(^8\)ms\(^{-1}\) respectively. If the angle of refraction is 30º, the sine of the angle of incidence is? 

  • A.0.33
  • B.0.50
  • C.0.67
  • D.0.75
  • E.
Objective

Question details

Exam body
JAMB
Subject
Physics
Year
2021
Question no.
#0
Type
Objective
Previous · Q0The inside portion of part of a hollow metal sphere of diameter 20cm is… Next · Q0 An astronomical telescope is said to be in normal adjustment when the?

More from this paper

  • Q0The slope of the straight line displacement-time graph indicates?
  • Q0A man will exert the greatest pressure when he?
  • Q0Which of the units of the following physical quantities are derived? I. Area II…
  • Q0A ball of mass 0.5kg moving at 10ms\(^{-1}\) collides with another ball of equal…
  • Q0The motion of a body is simple harmonic if the?
  • Q0Which of the following is not correct about the molecules of a substance in a…
See all Physics 2021 questions
Teacha

Africa's learning & exam readiness platform. Built for students, tutors, and schools.

Platform

  • Courses
  • Mock Exams
  • Past Questions

For You

  • I'm a Tutor
  • I'm a School
  • Pricing

© 2025 Teacha. Built for African learners, tutors, and schools. Teacha is not affiliated with WAEC, NECO, or JAMB. All past questions are sourced from publicly available materials.

Privacy PolicyTerms of UseCookie Policy