Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A diverging lens of focal length f1 is placed in front of and coaxially with a concave mirror of focal length f2. Their separation is d. A parallel beam of light incident on the lens returns
09
Oct
A diverging lens of focal length f1 is placed in front of and coaxially with a concave mirror of focal length f2. Their separation is d. A parallel beam of light incident on the lens returns A diverging lens of focal length f1 is placed in front of and coaxially with a concave mirror of [...]
A piece of copper wire has twice the radius of a piece of steel wire. Young’s modulus for steel is twice that of the copper. One end of the copper wire is joined to one end of the steel wire so that both can be subjected to the same longitudinal force. By what fraction of its length will the steel have stretched when the length of the copper has increased by 1%?
09
Oct
A piece of copper wire has twice the radius of a piece of steel wire. Young’s modulus for steel is twice that of the copper. One end of the copper wire is joined to one end of the steel wire so that both can be subjected to the same longitudinal force. By what fraction of [...]
A thin, symmetric double convex lens of power P is cut into three parts A, B, and C as shown in figure. The power of
09
Oct
A thin, symmetric double convex lens of power P is cut into three parts A, B, and C as shown in figure. The power of A thin and C as shown in figure. The power of B symmetric double convex lens of power P is cut into three parts A October 9, 2020 Category: Uncategorised [...]
The breaking stress for a substance is 10^6 N/m^2. What length of the wire of this substance should be suspended verticaly so that the wire breaks under its own weight? (Given: density of material of the wire = 4 × 10^3 kg/m^3 and g = 10 m/s^2 )
09
Oct
The breaking stress for a substance is 10^6 N/m^2. What length of the wire of this substance should be suspended verticaly so that the wire breaks under its own weight? (Given: density of material of the wire = 4 × 10^3 kg/m^3 and g = 10 m/s^2 ) then its new length becomes Young's modulus [...]
Two converging lenses of focal lengths f1 = 10 cm and f2 = 20 cm are placed at some separation. A parallel beam of light is incident on first lens. Then,
09
Oct
Two converging lenses of focal lengths f1 = 10 cm and f2 = 20 cm are placed at some separation. A parallel beam of light is incident on first lens. Then, Two converging lenses of focal lengths f1 = 10 cm and f2 = 20 cm are placed at some separation. A parallel beam of [...]
When a real object is placed 25 cm from a lens, a real image is formed. Mark the correct statements from the following
09
Oct
When a real object is placed 25 cm from a lens, a real image is formed. Mark the correct statements from the following a real image is formed. Mark the correct statement(s) from the following. When a real object is placed 25 cm from a lens October 9, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
Two wires of the same material have lengths in the ratio 1:2 and their radii are in the ratio 1:2–√ If they are stretched by applying equal forces, the increase in their lengths will be in the ratio
09
Oct
Two wires of the same material have lengths in the ratio 1:2 and their radii are in the ratio 1:2–√ If they are stretched by applying equal forces, the increase in their lengths will be in the ratio the increase in their lengths will be in the ratio Two wires of the same material have [...]
An image of a bright square is obtained on a screen with the aid of a convergent lens. The distance between the square and the lens is 40 cm. The area of the image is nine times
09
Oct
An image of a bright square is obtained on a screen with the aid of a convergent lens. The distance between the square and the lens is 40 cm. The area of the image is nine times An image of a bright square is obtained on a screen with the aid of a convergent lens. [...]
When a certain weight is suspended from a long uniform wire, its length increases by 1cm. If the same weight is suspended from another we of the same material and length but having a diameter half of the first one, the increases in length will be
09
Oct
When a certain weight is suspended from a long uniform wire, its length increases by 1cm. If the same weight is suspended from another we of the same material and length but having a diameter half of the first one, the increases in length will be its length increases by 1cm. If the same weight [...]
What amount of work is done in increasing the length of a wire through unity?
09
Oct
What amount of work is done in increasing the length of a wire through unity? What amount of work is done in increasing the length of a wire through unity? October 9, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,