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In a cylinder whose diameter is exactly 1.0 cm at `30^@`C is to be slid into a hole of diameter 0.9997 cm in a steel plate at the same temperature. The minimum required rise in temperature of the plate is (The coefficient of linear expansion of steel = `12xx10^(-6)//^@C` ) :

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If a cylinder of diameter 1.0cm at 30^(@)C is to be slid into a hole of diameter 0.9997 cm in a steel plate at the same temperature, the minimum required rise in the temperature of the plate is: (Coefficient of linear expansion of steel = 12 xx 10^(-6//@)C )

The coefficient of linear expansion of a metal rod is 12 xx 10^(-6//0)C , its value in per ^(0)F

A steel meter scale is to be ruled so that millimeter intervals are accurate within about 5xx10^(-5) mm at a certain temperature. The maximum temperature variation allowable during the ruling is (Coefficient of linear expansion of steel =10xx10^(-6)K^(-1) )

At 40^(@)C , a brass rod has a length 50 cm and a diameter 3.0 mm. it is joined to a steel rod of the same length and diameter at the same temperature. What is the change in the length of the composite rod when it is heated to 240^(@)C ? The coefficient of liear expansion of brass and steel are 2.0xx10^(-5).^(@)C^(-1) and 1.2xx10^(-5).^(@)C^(-1) respectively:

A brass disc has a hole of diameter 2.5 cm at 27^(@)C . Find the change in the diameter of the hole of the disc when heated to 327^(@)C . Given coefficient of linear expansion of brass = 1.9 xx 10^(-5) .^(@)C^(-1)

At 50^(@)C , a brass rod has a length 50 cm and a diameter 2 mm . It is joined to a steel rod of the same length and diameter at the same temperature . The change in the length of the composite rod when it is heated to 250^(@)C is (Coefficient of linear expansion of brass = 2.0 xx 10^(-5)"^(@) C^(-1) , coefficient of linear expansion of steel = 1.2 xx 10^(-5) "^(@) C^(-1) )

A steel rod of length 1 m is heated from 25^@ "to" 75^@ C keeping its length constant. The longitudinal strain developed in the rod is ( Given, coefficient of linear expansion of steel = 12 xx 10^-6//^@ C ).

A clock with a steel pendulum gives accurate time at 30^@C . Calculate the fractional loss or gain in time if temperature changes to 50^@C . Coefficient of linear expansion of steel = 12 xx 10^(-6) ""^@C^(-1)

An iron sphere of radius 10 cm is at temperature , 10^(@)C . If the sphere is heated upto temperature 110^(@)C , find the change in the volume of the sphere coefficient of linear expansion of iron = 11 xx 10^(-6) .^(@)C^(-1)

NEET MAJOR TEST (COACHING)-DRILL TEST 6-PHYSICS
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