Class 11

3. Unit And Measurement question bank (Physics)

Practice 965 free Class 11 Physics - 3. Unit And Measurement questions with answers and step-by-step solutions.

Start free Book a demo
All Easy Hard Medium
Q1.

The solid angle subtended by the periphery of an area 1 cm² at a point situated symmetrically at a distance of 5 cm from the area is

(A)
\( 2 \times 10^{-2} \) steradian
(B)
\( 4 \times 10^{-2} \) steradian
(C)
\( 6 \times 10^{-2} \) steradian
(D)
\( 8 \times 10^{-2} \) steradian
Show answer & solution
Verified Answer & Solution Locked
Sign in to your free student account to reveal verified answers, instant hints, and detailed explanations.
Sign in to view
Q2.

In which year SI system of units was developed and recommended by General Conference on Weights and Measures?

(A)
1951
(B)
1961
(C)
1971
(D)
1981
Show answer & solution
Verified Answer & Solution Locked
Sign in to your free student account to reveal verified answers, instant hints, and detailed explanations.
Sign in to view
Protected Questions

Unlock All 965 Questions in 3. Unit And Measurement

Log in or sign up free to access every question with complete solutions, create chapter practice tests, and track your performance.

Sign in to unlock Create free account

Sign up free to access all 965 questions

Unlock every 3. Unit And Measurement question, generate papers, and practice at your own pace.

Start free