# NUST NET 2 SAMPLE PHYSICS QUESTIONS

National University of Science and Technology NUST is top rated engineering university of Pakistan. NUST was founded in 1991 with an aim of providing quality education to the students. NUST grow up dramatically in a very little time period because of their focus towards quality education and dedication toward their work. NUST offer many undergraduate programs every year, NUST test is also considered to be one of the most difficult test in Pakistan. Due to their quality education, the fee is quite high but they facilitate poor and needy students through need base scholarship.

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TOPIC

Nuclear Physics

QUESTION

The bombardment of nitrogen with alpha particles produces oxygen and?

OPTIONS

• Beta particle
• Alpha particle
• Neutron
• Proton

CORRECT OPTION

Proton

EXPLANATION

From the atomic and mass number of nitrogen, helium and oxygen, write the equation and balance it as number of protons and neutron must remain same after nuclear reaction.

7N14 + 2He4  —-> 8O17 …. In order to balance this equation the accompanying particle with oxygen must be 1H1 (A proton).

TOPIC

Physics of Solids

QUESTION

A wire of cross section A and length l is subjected to load L. A second wire of the same material with an area 2A and length 2l is subjected to the same load L. If extension for first wire is X and for second wire is Y, find the ratio X/Y?

OPTIONS

• 1/4
• 1/2
• 1/1
• 2/1

CORRECT OPTION

1/1

EXPLANATION

Change in length is directly proportional to l/A. If we increase both the length and area by two times the change in length would be same as the original wire.

TOPIC

Heat & Thermodynamics

QUESTION

If velocity of gas particles for two gases is same. The pressure is directly proportional to? Assume volume of the container is same.

OPTIONS

• Mass of gas molecule
• Absolute temperature
• Size of piston on the container
• Both A & B

CORRECT OPTION

Both A & B

EXPLANATION

P is directly proportional to KE = 1/2mv2. If v is same for two different gases then P depends on the m of the gas molecules. Pressure is also directly proportional to absolute temperature as K.E is directly proportional to temperature.

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