Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Medium-Class 11
What is the maximum height a mountain can reach before the shear stress exceeds the elastic limit of the rock, given that the density of the rock is 3 × 10^3 kg/m^3 and the gravitational acceleration is 10 m/s^2?
A
10 km
B
8 km
C
12 km
D
15 km
Correct Answer
Option A
Detailed Explanation
The elastic limit for a typical rock is 30 × 10^7 N/m^2. Using hρg = 30 × 10^7 N/m^2, with ρ = 3 × 10^3 kg/m^3, h is calculated as 10 km.
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