My Report

Engineering Physics I Practice Test 8


Correct Answer: 2 points | Wrong: -1 point
Grades: A* (100% score) | A (80%-99%) | B (60%-80%) | C (40%-60%) | D (0%-40%)
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1. If a star radiates energy at the rate of 5 x 1020 Js-1, what is the rate at which its mass is decreasing?

2. For an aluminium the modulus of rigidity is 2.1×1010 N/m2 and density is 2.7×103 kg/m3. Find the speed of transverse waves in the medium.

3. The radiations emitted by hot bodies are called as ________________

4. Which effect is shown by the following figure?
engineering-physics-questions-answers-einsteins-special-theory-relativity-q10

5. A cube with sides of proper length lo is viewed from a reference frame moving with velocity v, parallel to an edge of the cube. The expression for the volume of the cube for the observer is __________

6. For beats to be produced ___________

7. In Relativistic case, as the velocity of the particle approaches the speed of light, the Kinetic energy approaches ___________

8. During Einstein’s Photoelectric Experiment, what changes are observed when the frequency of the incident radiation is increased?

9. If the sun radiates energy at the rate of 4 x 1026 Js-1, what is the rate at which its mass is decreasing?

10. What kind of wave is formed in organ pipes?


 

Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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