Question
How much force is required to produce an increase of 0.2% in the length of a brass wire of diameter 0.06 mm (Young's modulus for brass
)
- Nearly 17 N
- Nearly 34 N
- Nearly 5N
- Nearly 68 N
The correct answer is: Nearly 5N
Related Questions to study
We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means 
We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means
PQR is a right angled prism with other angles as 
and 
. Refractive index of prism is 1.5. PQ has a thin layer of liquid. Light falls normally on the face PR. For total internal reflection, maximum refractive index of liquid is
PQR is a right angled prism with other angles as and . Refractive index of prism is 1.5. PQ has a thin layer of liquid. Light falls normally on the face PR. For total internal reflection, maximum refractive index of liquid is
A point source of light S is placed at the bottom of a vessel containing a liquid of refractive index 5/3. A person is viewing the source from above the surface. There is an opaque disc D of radius 1 cm floating on the surface of the liquid. The centre of the disc lies vertically above the source S. The liquid from the vessel is gradually drained out through a tap. The maximum height of the liquid for which the source cannot be seen at all from above is
A point source of light S is placed at the bottom of a vessel containing a liquid of refractive index 5/3. A person is viewing the source from above the surface. There is an opaque disc D of radius 1 cm floating on the surface of the liquid. The centre of the disc lies vertically above the source S. The liquid from the vessel is gradually drained out through a tap. The maximum height of the liquid for which the source cannot be seen at all from above is
A ray of light strikes a plane mirror M at an angle of 45° as shown in the figure. After reflection, the ray passes through a prism of refractive index 1.5 whose apex angle is 4°. The total angle through which the ray is deviated is
A ray of light strikes a plane mirror M at an angle of 45° as shown in the figure. After reflection, the ray passes through a prism of refractive index 1.5 whose apex angle is 4°. The total angle through which the ray is deviated is
A rod is fived between two points at 20° The Coefficient of linear expansion of material of rad is 
and Young's modulus is 
. Find the stress developed in the rod if temperature of rod becomes 10°
A rod is fived between two points at 20° The Coefficient of linear expansion of material of rad is and Young's modulus is . Find the stress developed in the rod if temperature of rod becomes 10°
We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means
We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means
We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means
We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means
