NUST NET SAMPLE PHYSICS QUESTIONS

National University of Sciences and Technology (NUST) is ranked among top engineering universities of Pakistan. NUST was established in 1991, they have many campuses in different cities but their main campus is in Islamabad. NUST was established with a goal of providing quality education to its students and to create better carrier opportunities for them so that they can succeed in their lives. Nust mainly focus on quality education that’s why their fee is quite high but they facilitate poor and needy students through need base scholarship. NUST has earned his status in a very short period of time through their dedication and hard work.

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Topic

Nuclear physics

Question

The energy obtained in a nuclear reaction is derived from

Option

  • Mass defect and binding energy
  • Fission
  • Fusion
  • All of these

Correct Answer

All of these

Explanation:

The sum of the individual masses of the parts of a nucleus is less than their mass when they are bound into the nucleus producing mass defect. The mass from the mass defect is converted into the energy that holds the nucleus together and is released in fission. Fusion also produces energy when individual nuclei are forced to combine (fusion) and form new elements in a process that produces energy.

TOPIC

Vectors & Equilibrium

QUESTION

If A = B + C and B = C + A then C =? (A, B and C are null vectors),

OPTIONS

  1. A + B
  2. A
  3. B
  4. Null vector

CORRECT OPTION

Null vector

EXPLANATION

A = B + C ….. (i)

B = C + A ….. (ii)

From i and ii. A = C + A + C or 2C = 0 => C is a null vector.

TOPIC

Alternating Current

QUESTION

A DC battery can pass current continuously through?

  1. Resistor
  2. Capacitor
  3. Inductor

OPTIONS

  • I only
  • I and II only
  • I and III only
  • I, II and III

CORRECT OPTION

I and III only

EXPLANATION

DC current cannot flow through a capacitor continuously because of the presence of an insulating medium between the plates of the capacitor.


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