Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Medium-Class 11
If the elastic limit for a typical rock is 30 x 10^7 N/m^2, and the density of the rock is 3 x 10^3 kg/m^3, what is the maximum height (h) a mountain composed of this rock can reach without exceeding its elastic limit?
A
10 km
B
5 km
C
15 km
D
20 km
Correct Answer
Option A
Detailed Explanation
Using the formula hρg = elastic limit, with ρ = 3 x 10^3 kg/m^3 and g = 10 m/s^2, the height h = (30 x 10^7 N/m^2) / (3 x 10^3 kg/m^3 x 10 m/s^2) = 10 km.
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