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For a concave mirror of focal length f, image is 2 times larger. Then the object distance from the mirror can be For a concave mirror of focal length f image is 2 times larger. Then the object distance from the mirror can be October 7, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

In the situation in figure ( cos 53 = 3/5) (1) velocity of image w.r.t. mirror is -22i -24 j (2) velocity of image w.r.t. mirror is -44i -24j In the situation in figure ( cos 53 = 3/5) (1) velocity of image w.r.t. mirror is -22i -24 j (2) velocity of image w.r.t. mirror [...]

Refractive index of an equilateral prism is root 2 . Then (1) minimum deviation from this prism can be 30 (2) minimum deviation from the prism can be 45 Refractive index of an equilateral prism is root 2 . Then (1) minimum deviation from this prism can be 30 (2) minimum deviation from the prism [...]

A large wooden piece in the form of a cylinder floats on water with two-thirds of its length immersed. When a man stands on its upper surface, a further one-sixth of its length is immersed. The ratio between the masses of the man and the wooden piece is a further one-sixth of its length is [...]

The `U`-tube shown in the figure has a uniform cross section. A liquid is filled up to heights `h_(1)` and `h_(2)` in the two arms and they are allowed to move. Neglecting viscosity and surface tension, find the state of the liquid when the levels equalize in the two arms. Find the correct statement. determine [...]

Multiply and reduce to lowest form (if possible): (vii) 4/5 x 12/7 Multiply and reduce to lowest form (if possible): (vii) 4/5 x 12/7 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,

Multiply and reduce to lowest form (if possible): (vi) 11/2 x 3/10 Multiply and reduce to lowest form (if possible): (vi) 11/2 x 3/10 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,

A square gate of size `1 m x 1 m` is hinged at its mid point. A fluid of density `rho` fill the space to the left of the gate. The force F required to hold the gate stationary is A square gate of size `1 m x 1 m` is hinged at its mid [...]

Multiply and reduce to lowest form (if possible): (v) 1/3 x 15/8 Multiply and reduce to lowest form (if possible): (v) 1/3 x 15/8 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,

A container filled with liquid up to height h is placed on a smooth horizontal surface. The container is having a small hole at the bottom. As the liquid comes out from the hole, the container moves in a backward direction with acceleration a and finally, when al liquid is drained out, it acquires a [...]