# PHYSICS questions

Jun 16th, 2015
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1. How do you determine the diameter of a wire using a screw gauge ?2. What is the principle of a screw gauge ? 3. Define the least count of a screw gauge.4. Draw a neat sketch of Screw gauge and label the parts.5. What are positive and Negative Zero error of a screw gauge ? How are they determined ?

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PHYSICSMEASUREMENT1. How do you determine the diameter of a wire using a screw gauge ?2. What is the principle of a screw gauge ?3. Define the least count of a screw gauge.4. Draw a neat sketch of Screw gauge and label the parts.5. What are positive and Negative Zero error of a screw gauge ? How are they determined ?6. What is the instrument you use in the laboratory find out the thickness of a glass plate ? Draw a neat diagram and lable the parts ?OUR UNIVERSE1. Define the weight of a body.2. What is acceleration due to gravity ?3. What is Heliocentric theory ?4. Differentiate between mass and weight of a body.5. State Hooke's law.6. State the Newton's law of Universal gravitation. Calculate the gravitational force on an object of mass 10 kg.7. The weight of a body is not me same on the surface of "the earth at all places. Specify the reason. . 8. Derive the relation between acceleration due to gravity and universal gravitational constant.9. Why is the weight of a body not same at poles and at equator ?10. Why does the Value of g decreases when we go deep into the earthy ?KINEMATICS1. Find the. velocity of a freely falling body from a height of 20 m when it touches the ground, (g = 1Om/s2)2. A body is projected vertically upwards with an initial velocity of 10 m/s. Find the maximum height reachedby the body, [g = 10 m/s2]3. A body is projected vertically upwards with an initial velocity of 40 m/s. Find the maximum height reachedby the bo

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