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 and to create better carrier opportunities for them so that they can succeed in their lives. 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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SAMPLE QUESTIONS

Topic:

Fluid Dynamics

Question:

The product of cross sectional area of the pipe and the fluid speed at any point along the pipe;

Options:

  • Remains constant
  • Is zero
  • Exponentially increases
  • Exponentially decreases

Correct answer:

Remains constant

Explanation:

If A is cross section area of pipe and v is speed of fluid.

A1V1 = A2V2 or AV = constant.

Topic:

Waves & Oscillations

Question:

Speed of sound waves depend on which of the following?

Options:

  • Compressibility of the medium
  • Inertia of the medium
  • Both compressibility and inertia of the medium
  • Sound waves speed is constant and independent of the compressiblity or inertia of the medium

Correct answer:

Both compressibility and inertia of the medium

Explanation:

The speed of sound waves depend on the compressiblity and inertia of the medium. The speed of sound is higher in solids as compared to the gasses. So, low compressiblity and high inertia of the medium would result in the higher speed of sound.

Topic:

Physics of solids

Question:

A piece of Cu and another of Ge are cooled from room temp to -1500 C. The resistance of?

Options:

  • Each of them increases
  • Cu increases and that of Ge decreases
  • Cu decrease and that of Ge increases
  • Each of them decreases

Correct option:

Cu decrease and that of Ge increases

Explanation:

The resistivity of semiconductors increases with a decrease in the temperature while for conductors it decrease with a decrease in the temperature. As opposed to metals, semiconductors have high negative temperature coefficient of resistance.

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