Two rods, one of aluminum and the other made of steel, having initial length l1 and l2 are connected together to form a single rod of length l1 + l2 . The coefficients of linear expansion for aluminum and steel are αa and αs respectively. If the length of each rod increases by the same amount when their temperature are raised by t° C, then find the ratio

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Questions Match

1.
Two rods, one of aluminum and the other made of steel, having initial length l₁ and l₂are connected together to form a single rod of length l₁+ l₂ . The coefficients of linear expansion for aluminum and steel are α_a and α_s respectively. If the length of each rod increases by the same amount when their temperature are raised by t° C, then find the ratio

1. 2. 3. 4.

2.
A particle executes a simple harmonic motion of time period T. Find the time taken by the particle to go directly from its mean position to half the amplitude

1. T/22. T/43. T/84. T/12

3.
Using intergration find the area enclosed by the curve y = x – x² and positive x axis from x = 0 to x = 1

1.  unit2.  unit3. unit4. unit

4.
Find the distance of particle from t = 0 to t = 5 s from the graph shown

1. 10 m2. 20 m3. 40 m4. –10 m

5.
Position-time graph is as shown in figure. Find the velocity of object

1. 15 m/s2. 7.5 m/s3. 30 m/s4. 3.25 m/s

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Two rods, one of aluminum and the other made of steel, having initial length l1 and l2 are connected together to form a single rod of length l1 + l2 . The coefficients of linear expansion for aluminum and steel are αa and αs respectively. If the length of each rod increases by the same amount when their temperature are raised by t° C, then find the ratio 