If two rods of length l and 2l

Asked by admin @ 29/08/2021 in Physics viewed by 350 People

if two rod of length L and 2L having coefficient of linear expansion alpha and 2alpha respectively are connected so that there total length become 3l the average coefficient of linear expansion of both rod is. a) 3/2alpha .. b) 5/2alpha . c)none of these d) 5/3 alpha

Answered by admin @ 29/08/2021

Answer:

Hence the option is d) 5/3 alpha

Two rods of equal mass m and length l

Asked by admin @ 20/08/2021 in Physics viewed by 331 persons

two rods of equal mass m and equal length l along the x-axis and y-axis with their centres origin. What is the moment of inertia of both about the line …

A light rod of length l has two masses

Asked by admin @ 13/08/2021 in Physics viewed by 301 persons

A light rod of length l has two masses m1 and m2 attached to its two ends. The moment of inertia of the system about an axis perpendicular to the …

Two uniform metal rods of length l1 and l2

Asked by admin @ 17/08/2021 in Physics viewed by 309 persons

Two uniform metal rods of length L1, and L2, and their linear coefficients of expansion alpha1 , and alpha 2. respectively, are connected to form a single rod of length …

Two uniform rods of equal length but different masses

Asked by admin @ 17/08/2021 in Physics viewed by 412 persons

Two uniform rods of equal length but different masses are rigidly joined to form an l shaped body

Two identical thin bar magnets each of length l

Asked by admin @ 16/08/2021 in Physics viewed by 278 persons

Two identical thin bar magnets each of length l and pole strength m are placed right angle to each other,with north pole of one touching south pole of the other,then …

Figure shows a uniform rod of length 30cm

Asked by admin @ 31/08/2021 in Physics viewed by 305 persons

Figure shows a uniform rod of length 30 cm having a mass of 3.0 kg. The strings shown in the figure are pulled by constant forces of 20 N and …

A wire of length l and radius r

Asked by admin @ 31/08/2021 in Physics viewed by 304 persons

A wire of length l radius r is stretched by a force f and a second wire of same material with kength 2l and radius 2r is stretched with a …

A thin wire of length l and mass m

Asked by admin @ 20/08/2021 in Physics viewed by 341 persons

a thin wire of length L and mass M is bent in the form of a semicircle its moment of inertia about an Axis joining the free ends will be

The variation of potential difference v with length l

Asked by admin @ 20/08/2021 in Physics viewed by 245 persons

The variation of potential difference v with length l in case of two potentiometers x and y is shown in the fig. which one of these two will you prefer …

A bar magnet of length l and magnetic dipole

Asked by admin @ 20/08/2021 in Physics viewed by 345 persons

A bar magnet of length l and magnetic dipolemoment M is bent in the form of an arc as shown in figure. The new magnetic dipole moment will be :-

A simple pendulum has a string of length l

Asked by admin @ 20/08/2021 in Physics viewed by 327 persons

a simple pendulum has a string of length l and bob of mass m. when the bob is at its lowest position, it is given the minimum horizontal speed necessary …

A wire of uniform cross section and length l

Asked by admin @ 20/08/2021 in Physics viewed by 344 persons

A wire of uniform cross-section and length l has a resistance of 4 . The wire is cut into four equal pieces. Each piece is then stretched to length l'. …

A wire of uniform cross section a length l

Asked by admin @ 17/08/2021 in Physics viewed by 347 persons

when a wire of uniform cross section a,length l and resistance R is bent into complete circular path, Resistance between two of diameter opposite points will be

If in two circles arcs of the same length

Asked by admin @ 13/08/2021 in Math viewed by 385 persons

If in two circles,arcs of the same length subtend angles 60° and 75° at the centre,find the ratio between their radii

Two wires a and b are of equal length

Asked by admin @ 12/08/2021 in Physics viewed by 326 persons

Two wires A and b are of equal length, different cross sectional areas and made of same metal.(a) (i) Name the property which is same for both the wires. …