Physics-
General
Easy

Question

A plane mirror is placed at the bottom of the tank containing a liquid of refractive index mu. P is a small object at a height h above the mirror. An observer O-vertically above P outside the liquid see P and its image in the mirror. The apparent distance between these two will be

  1. 2 mu h    
  2. fraction numerator 2 h over denominator mu end fraction    
  3. fraction numerator 2 h over denominator mu minus 1 end fraction    
  4. h open parentheses 1 plus fraction numerator 1 over denominator mu end fraction close parentheses    

The correct answer is: fraction numerator 2 h over denominator mu end fraction


    Image formation by a mirror (either plane or spherical) does not depend on the medium.
    The image of P will be formed at a distance h below the mirror. If d = depth of liquid in the tank.
    Apparent depth of P equals x subscript 1 end subscript equals fraction numerator d minus h over denominator mu end fraction
    Apparent depth of the image of P equals x subscript 2 end subscript equals fraction numerator d plus h over denominator mu end fraction
    \ Apparent distance between P and it's image equals x subscript 2 end subscript minus x subscript 1 end subscript equals fraction numerator 2 h over denominator mu end fraction

    Related Questions to study

    General
    Physics-

    If an object moves towards a plane mirror with a speed v at an angle theta to the perpendicular to the plane of the mirror, find the relative velocity between the object and the image

    If an object moves towards a plane mirror with a speed v at an angle theta to the perpendicular to the plane of the mirror, find the relative velocity between the object and the image

    Physics-General
    General
    Physics-

    Two point white dots are 1mm apart on a black paper. They are viewed by eye of pupil diameter 3 mm. Approximately, what is the maximum distance at which dots can be resolved by the eye ? [Take wavelength of light = 500 nm]

    Two point white dots are 1mm apart on a black paper. They are viewed by eye of pupil diameter 3 mm. Approximately, what is the maximum distance at which dots can be resolved by the eye ? [Take wavelength of light = 500 nm]

    Physics-General
    General
    Physics-

    A container is filled with water (mu = 1.33) upto a height of 33.25 cm. A concave mirror is placed 15 cm above the water level and the image of an object placed at the bottom is formed 25 cm below the water level. The focal length of the mirror is

    A container is filled with water (mu = 1.33) upto a height of 33.25 cm. A concave mirror is placed 15 cm above the water level and the image of an object placed at the bottom is formed 25 cm below the water level. The focal length of the mirror is

    Physics-General
    parallel
    General
    Physics-

    A light source is located at P subscript 1 end subscript as shown in the figure. All sides of the polygon are equal. The intensity of illumination at P subscript 2 end subscript is I subscript 0 end subscript. What will be the intensity of illumination at P subscript 3 end subscript

    A light source is located at P subscript 1 end subscript as shown in the figure. All sides of the polygon are equal. The intensity of illumination at P subscript 2 end subscript is I subscript 0 end subscript. What will be the intensity of illumination at P subscript 3 end subscript

    Physics-General
    General
    Physics-

    The refractive index of the material of the prism and liquid are 1.56 and 1.32 respectively. What will be the value of q for the following refraction

    The refractive index of the material of the prism and liquid are 1.56 and 1.32 respectively. What will be the value of q for the following refraction

    Physics-General
    General
    Physics-

    An isosceles prism of angle 120° has a refractive index of 1.44. Two parallel monochromatic rays enter the prism parallel to each other in air as shown. The rays emerging from the opposite faces

    An isosceles prism of angle 120° has a refractive index of 1.44. Two parallel monochromatic rays enter the prism parallel to each other in air as shown. The rays emerging from the opposite faces

    Physics-General
    parallel
    General
    Physics-

    An observer can see through a pin–hole the top end of a thin rod of height h, placed as shown in the figure. The beaker height is 3h and its radius h. When the beaker is filled with a liquid up to a height 2h, he can see the lower end of the rod. Then the refractive index of the liquid is

    An observer can see through a pin–hole the top end of a thin rod of height h, placed as shown in the figure. The beaker height is 3h and its radius h. When the beaker is filled with a liquid up to a height 2h, he can see the lower end of the rod. Then the refractive index of the liquid is

    Physics-General
    General
    Physics-

    A rectangular glass slab ABCD, of refractive index n1, is immersed in water of refractive index n2 (n1>n2). A ray of light in incident at the surface AB of the slab as shown. The maximum value of the angle of incidence amax, such that the ray comes out only from the other surface CD is given by

    A rectangular glass slab ABCD, of refractive index n1, is immersed in water of refractive index n2 (n1>n2). A ray of light in incident at the surface AB of the slab as shown. The maximum value of the angle of incidence amax, such that the ray comes out only from the other surface CD is given by

    Physics-General
    General
    Physics-

    A ray of light falls on the surface of a spherical glass paper weight making an angle alpha with the normal and is refracted in the medium at an angle beta. The angle of deviation of the emergent ray from the direction of the incident ray

    A ray of light falls on the surface of a spherical glass paper weight making an angle alpha with the normal and is refracted in the medium at an angle beta. The angle of deviation of the emergent ray from the direction of the incident ray

    Physics-General
    parallel
    General
    Physics-

    A square of side 3 c m is placed at a distance of 25 c m from a concave mirror of focal length 10 c m. The centre of the square is at the axis of the mirror and the plane is normal to the axis. The area enclosed by the image of the square is

    A square of side 3 c m is placed at a distance of 25 c m from a concave mirror of focal length 10 c m. The centre of the square is at the axis of the mirror and the plane is normal to the axis. The area enclosed by the image of the square is

    Physics-General
    General
    Physics-

    Two plane mirrors. A and B are aligned parallel to each other, as shown in the figure. A light ray is incident at an angle of 30 degree at a point just inside one end of A. The plane of incidence coincides with the plane of the figure. The maximum number of times the ray undergoes reflections (including the first one) before it emerges out is

    Two plane mirrors. A and B are aligned parallel to each other, as shown in the figure. A light ray is incident at an angle of 30 degree at a point just inside one end of A. The plane of incidence coincides with the plane of the figure. The maximum number of times the ray undergoes reflections (including the first one) before it emerges out is

    Physics-General
    General
    Physics-

    A point source of light B is placed at a distance L in front of the centre of a mirror of width d hung vertically on a wall. A man walks in front of the mirror along a line parallel to the mirror at a distance 2L from it as shown. The greatest distance over which he can see the image of the light source in the mirror is

    A point source of light B is placed at a distance L in front of the centre of a mirror of width d hung vertically on a wall. A man walks in front of the mirror along a line parallel to the mirror at a distance 2L from it as shown. The greatest distance over which he can see the image of the light source in the mirror is

    Physics-General
    parallel
    General
    Physics-

    Radius of curvature of a concave spherical surface separating air-glass medium is R. A point object is placed on the principal axis in the glass (mu subscript g end subscript = 1.5). For the image to be real, seen by observer in air, distance of the object from P should be :

    Radius of curvature of a concave spherical surface separating air-glass medium is R. A point object is placed on the principal axis in the glass (mu subscript g end subscript = 1.5). For the image to be real, seen by observer in air, distance of the object from P should be :

    Physics-General
    General
    Physics-

    If an object is placed 20 cm in front of a half thin convex lens of focal length 10 cm, as shown in figure, then co-ordinate of image taking p as origin

    If an object is placed 20 cm in front of a half thin convex lens of focal length 10 cm, as shown in figure, then co-ordinate of image taking p as origin

    Physics-General
    General
    Physics-

    The Figure shows a surface XY separating two transparent media, medium-1 and medium-2. The lines ab and cd represent wave fronts of a light wave traveling in medium-1 and incident on XY. The lines ef and gh represent wave fronts of the light wave in medium-2 after refraction.
    Speed of light is

    The Figure shows a surface XY separating two transparent media, medium-1 and medium-2. The lines ab and cd represent wave fronts of a light wave traveling in medium-1 and incident on XY. The lines ef and gh represent wave fronts of the light wave in medium-2 after refraction.
    Speed of light is

    Physics-General
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.