Physics Study Resources for Competitive Exam Success

Physics

Q. Which property of a material describes its ability to return to its original shape after deformation? (2023)

Solution

Elasticity is the property that allows a material to return to its original shape after deformation.

Correct Answer: B — Elasticity

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Q. Which property of fluids is defined as the resistance to flow?

Solution

Viscosity is the property of fluids that describes their resistance to flow.

Correct Answer: B — Viscosity

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Q. Which type of radiation has the highest penetrating power? (2019)

Solution

Gamma rays have the highest penetrating power among the types of radiation, able to pass through most materials.

Correct Answer: C — Gamma rays

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Q. Which type of semiconductor has a higher concentration of holes? (2023)

Solution

P-type semiconductors have a higher concentration of holes compared to N-type semiconductors.

Correct Answer: B — P-type

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Q. Which type of semiconductor is formed by doping silicon with phosphorus? (2020)

Solution

Doping silicon with phosphorus creates an n-type semiconductor due to the addition of extra electrons.

Correct Answer: B — n-type

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