MH SET 2025 Paper 2 Earth Atmospheric Ocean and Planetary Science Question Paper (15-Jun-2025)

Question 1

The nucleosynthesis have occurred progressively producing heavier and heavier elements with the following processes in sequence :

Accepted Answer

Big Bang Nucleosynthesis— Fusion in stars—Fusion in Supernova explosion

Answer

Fusion in stars—Fusion in Big Bang—Fission in Supernova

Answer

Big Bang fission—Star Fusion– Galactic collapse–Big Bang fusion

Answer

Star formation—Electroweak formation—Nuclear fusion

Question 2

Non-compensated spin moments and the positive exchange interaction of the co-directed spins results in :

Accepted Answer

Ferromagnetic material

Answer

Antiferromagnetic material

Answer

Diamagnetic material

Answer

Paramagnetic material

Question 3

The most important mechanism of heat transfer in the earth is :

Accepted Answer

Convection in the mantle and core

Answer

Conduction in the crust and mantle

Answer

Convection in the crust and mantle

Answer

Radiation from the surface of the earth

Question 4

Which one of the following decay series is incorrect along with their half life ?

Accepted Answer

Uranium-235 to Lead-350 at 200 million years

Answer

Carbon-14 to Nitrogen-14 at 5730 years

Answer

Potassium-40 to Argon-40 at 1280 million years

Answer

Rubidium-87 to Strontium-87 at 48,800 million years

Question 5

The apparent resistivity sounding curve representing the resistivity structure p1 > p2 < p3 < p4 of a four- layer Earth is :

Accepted Answer

HA-type

Answer

HK-type

Answer

KH-type

Answer

KQ-type