JEE Main 2021 · PhysicsMultiple choiceSingle correctMediumMulti-step

JEE Main 27 August 2021, Shift 1, Physics Q3

Question 3 of 90 in this shift, Physics question 3 of 30, Section A.

A huge circular arc of length 4.4 ly subtends an angle ‘4s’ at the centre of the circle. How long it would take for a body to complete 4 revolution if its speed is 8 AU per second ? Given : 1 ly

=9.46\times10^{15}

m 1 AU

=1.5\times10^{11}

(1) $4.5\times10^{10}$ sOfficial answer
(2) $4.1\times10^{8}$ s
(3) $3.5\times10^{6}$ s
(4) $7.2\times10^{8}$ s

Official answer

Option 1

NTA final key.

Chapter: Units and Measurements
Topic: No close match in our taxonomy
Idea tested: No close match in our taxonomy