Part 1
The coefficient of linear expansion α of the material of a rod of length ℓ 0 varies with absolute temperature as α = aT − bT^2 where a & b are constants. The linear expansion of the rod when heated from T1 to T2 = 2T1 is
11
Sep
The coefficient of linear expansion α of the material of a rod of length ℓ 0 varies with absolute temperature as α = aT − bT^2 where a & b are constants. The linear expansion of the rod when heated from T1 to T2 = 2T1 is A difference of temperature of 25^∘C [...]
A lead bullet strikes against a steel plate with a velocity 200 ms^−1 . If the impact is perfectly inelastic and the heat produced is equally shared between the bullet and the target, then the rise in temperature of the bullet is (Specific heat capacity of lead =125 J kg^−1K^−1 )
11
Sep
A lead bullet strikes against a steel plate with a velocity 200 ms^−1 . If the impact is perfectly inelastic and the heat produced is equally shared between the bullet and the target, then the rise in temperature of the bullet is (Specific heat capacity of lead =125 J kg^−1K^−1 ) A lead bullet strikes [...]
Two rods, one of aluminium and the other made of steel ,having initial length l1+l2. are connected together to form a single rod of length l1+l2. The coefficients of linear expansion for aluminium 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 l1/l1+l2
11
Sep
Two rods, one of aluminium and the other made of steel ,having initial length l1+l2. are connected together to form a single rod of length l1+l2. The coefficients of linear expansion for aluminium and steel are αa and αs respectively. if the length of each rod increases by the same amount when their temperature are [...]
Two rods having length l1 , and l2 made of materials with the linear expansion coefficient α 1 and α2 , were soldered together. The equivalent coefficients of linear expansion for the obtained rod :
11
Sep
Two rods having length l1 , and l2 made of materials with the linear expansion coefficient α 1 and α2 , were soldered together. The equivalent coefficients of linear expansion for the obtained rod : and l2 made of materials with the linear expansion coefficient α 1 and α2 Two rods having length l1 [...]
There is a rectangular metal plate in which two cavities in the shape of rectangle and circle are made, as shown with dimensions. P and Q are centres of these cavities. On heating the plate, which of the following quantities increase?
11
Sep
There is a rectangular metal plate in which two cavities in the shape of rectangle and circle are made, as shown with dimensions. P and Q are centres of these cavities. On heating the plate, which of the following quantities increase? as shown with dimensions. P and Q are centres of these cavities. On heating [...]
Two rods of length l_(1) and l_(2) are made of material whose coefficient of linear expansion are alpha_(1) and alpha_(2) , respectively. The difference between the two lengths is independent of temperature
11
Sep
Two rods of length l_(1) and l_(2) are made of material whose coefficient of linear expansion are alpha_(1) and alpha_(2) , respectively. The difference between the two lengths is independent of temperature respectively. The difference between the two lengths is independent of temperature Two rods of length l_(1) and l_(2) are made of material whose [...]
A crystal has a coefficient of linear expansion 12×10^−4 K and that is the other two perpendicular direction is 1.6 x 10^-4 K^-1. What is the coefficient of cubical expansion of the crystal ?
11
Sep
A crystal has a coefficient of linear expansion 12×10^−4 K and that is the other two perpendicular direction is 1.6 x 10^-4 K^-1. What is the coefficient of cubical expansion of the crystal ? A crystal has a coefficient of linear expansion 12×10^−4 K and that is the other two perpendicular direction is 1.6 x [...]
A meter washer has a hole of diameter d_(1) and external diameter d_(2), where d_(2)=4d_(1). On heating , d_(2) increases by 0.5%. Then d_(1) will
11
Sep
A meter washer has a hole of diameter d_(1) and external diameter d_(2), where d_(2)=4d_(1). On heating , d_(2) increases by 0.5%. Then d_(1) will A meter washer has a hole of diameter d_(1) and external diameter d_(2) d_(2) increases by 0.5%. Then d_(1) will where d_(2)=4d_(1). On heating September 11, 2021 Category: Chapter 14 [...]
Two large holes are cut in a metal sheet. If this is heated, distances AB and BC ,(as shown)
11
Sep
Two large holes are cut in a metal sheet. If this is heated, distances AB and BC ,(as shown) as shown distances AB and BC Two large holes are cut in a metal sheet. If this is heated September 11, 2021 Category: Chapter 14 - Thermometry, Expansion and KTG , MTG NEET Physics ,
A Centigrade and Fahrenheit thermometers are dipped in boiling water. The water temperature is lowered until the Fahrenheit thermometer registers a temperature of 140° F. The fall of temperature as registered by the Centigrade thermometer is:
11
Sep
A Centigrade and Fahrenheit thermometers are dipped in boiling water. The water temperature is lowered until the Fahrenheit thermometer registers a temperature of 140° F. The fall of temperature as registered by the Centigrade thermometer is: A difference of temperature of 25^∘C is equivalent to a difference of. September 11, 2021 Category: Chapter 14 - [...]