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Saturday, 31 October

JEE Main 2021 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 4 August 2021, Shift 1, Physics Q8

Question 8 of 90 in this shift, Physics question 8 of 30, Section A.

A television transmission tower has a height of 250 m. The approximate distance upto which the broadcast can be received is (Assume the radius of earth = 6.4×1066.4 \times 10^6 m)
  1. (1)0 km
  2. (2)56 kmOfficial answer
  3. (3)6400 km
  4. (4)64 km

Official answer

Option 2

NTA final key.

Chapter
Communication Systems
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.