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#### A ray of light traveling in air is incident at grazing angle (Ð >i 90º) on a long rectangular slab of a transparent medium of thickness t = 1.0 m The point of incidence is the medium A (0, 0) The medium has a variable index of refraction n(y) given by where The refractive index of air is 1 Equation for the trajectory y(x) of the ray in the medium is

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#### A ray of light traveling in air is incident at grazing angle (Ð >i 90º) on a long rectangular slab of a transparent medium of thickness t = 1.0 m The point of incidence is the medium A (0, 0) The medium has a variable index of refraction n(y) given by where The refractive index of air is 1 The incident angle at B(x, y) in the medium and the slope at B are related by the formula

#### A ray of light traveling in air is incident at grazing angle (Ð >i 90º) on a long rectangular slab of a transparent medium of thickness t = 1.0 m The point of incidence is the medium A (0, 0) The medium has a variable index of refraction n(y) given by where The refractive index of air is 1 The incident angle at B(x, y) in the medium and the slope at B are related by the formula

physics-General

physics-

#### A point object ‘O’ is placed along x-axis An equi-convex thin lens of focal length f=20cm in air is placed so that its principal axis is along x-axis Now the lens is cut at the middle (along the principal axis) and upper half is shifted along x-axis and y-axis by 20cm and 2mm respectively and right side of lower half is filled with water co-ordinates of image formed by lenses are

#### A point object ‘O’ is placed along x-axis An equi-convex thin lens of focal length f=20cm in air is placed so that its principal axis is along x-axis Now the lens is cut at the middle (along the principal axis) and upper half is shifted along x-axis and y-axis by 20cm and 2mm respectively and right side of lower half is filled with water co-ordinates of image formed by lenses are

physics-General

physics-

#### An object is placed 20 cm in front of a plano– convex lens of focal length 15 cm The plane surface of the lens is silvered The image will be formed at a distance

#### An object is placed 20 cm in front of a plano– convex lens of focal length 15 cm The plane surface of the lens is silvered The image will be formed at a distance

physics-General

physics-

#### Two thin convex lenses of focal lengths f_{1} and f_{2} are separated by a horizontal distance d and their centers are displaced by a vertical separation D as shown in the figure : Taking the origin of coordinates, O, at the center of the first lens, the x and y-coordinates of the focal point of this lens system, for a parallel beam of rays coming from the left, are given by :

#### Two thin convex lenses of focal lengths f_{1} and f_{2} are separated by a horizontal distance d and their centers are displaced by a vertical separation D as shown in the figure : Taking the origin of coordinates, O, at the center of the first lens, the x and y-coordinates of the focal point of this lens system, for a parallel beam of rays coming from the left, are given by :

physics-General

physics-

#### For a convex lens, if real image is formed the graph between (u + v) andu or v is as follows

#### For a convex lens, if real image is formed the graph between (u + v) andu or v is as follows

physics-General

physics-

#### A ray OP of monochromatic light is incident on the face AB of prism ABCD near vertex B at an incident angle of 60^{0} (see figure) If the refractive index of the material of the prism is , which of the following is (are) correct?

#### A ray OP of monochromatic light is incident on the face AB of prism ABCD near vertex B at an incident angle of 60^{0} (see figure) If the refractive index of the material of the prism is , which of the following is (are) correct?

physics-General

biology

#### Man and mouse cells are treated with red rhodamine and Green fluorescent dyes separately and then are made to fuse. The resultant cells when kept at 37ºC, the distribution of dye on the surface of cell will be like–

#### Man and mouse cells are treated with red rhodamine and Green fluorescent dyes separately and then are made to fuse. The resultant cells when kept at 37ºC, the distribution of dye on the surface of cell will be like–

biologyGeneral

chemistry-

#### Which of the following statements is not correct?

#### Which of the following statements is not correct?

chemistry-General

maths-

It is obvious.

maths-General

It is obvious.

maths-

#### If then adj A

,

.

.

#### If then adj A

maths-General

,

.

.

maths-

#### Which of the following is not true

Every skew symmetric matrix of odd order is singular. So option (a) is incorrect.

#### Which of the following is not true

maths-General

Every skew symmetric matrix of odd order is singular. So option (a) is incorrect.

maths-

#### Which one of the following statements is true

If , then order of will be same to order of

*A*. So it is a square matrix.#### Which one of the following statements is true

maths-General

If , then order of will be same to order of

*A*. So it is a square matrix.maths-

#### The inverse of is

Let

.

.

#### The inverse of is

maths-General

Let

.

.

maths-

#### The inverse of matrix is

,

.

#### The inverse of matrix is

maths-General

,

.

chemistry-

#### respectively are

#### respectively are

chemistry-General