JEE Mains 2020 Model Paper 2 New Pattern

Show Para Hide Para

(NUMERICAL VALUE TYPE)
This section contains 5 questions. Each question is numerical value. For each question, enter the correct numerical value (in decimal notation, truncated/rounded-off to second decimal place.
(e.g. 6.25, 7.00, ‐0.33, ‐.30, 30.27, ‐127.30).

Question : 47 of 75

Marks: +1, -0

To disperse all the mass of the Earth to infinity against its own gravitational field would required 2.4 × 1032 J of energy. Mass of the earth is 6 × 1024 kg and radius of earth 6400 km. Since earth is mostly iron, therefore, its specific heat capacity is about 500Jkg−1K−1. Assuming that the earth was formed by very cold objects falling from a great distance away, its maximum possible temperature soon after its formation will be (in 104 K)

Your Answer:

Validate

Go to Question:

Prev Question

Next Question