Physics question and answers for November 02, 2023
- Q 6 converging lens of focal length 20 cm The 62 emergent light falls or a screen placed 30 cm beyond the lens An opaque plate with a triangular aperture side...
- Q 50 A ray falls on a prism ABC AB BC and travels as ulb shown in figure The minimum refractive index of the prism material should be 1 2 2...
- Q 31 Three prisms of crown glass each have angle of prism 9 and two prisms of flint glass are used to make direct vision spectroscope What will be the angle...
- Q V A cylindrical laser beam of diameter 4mm and power 10mW is incident on a convex lens of focal length 10 cm kept 2m away Intensity at image will be...
- Q D Rays of light fall on the plane surface of a half cyl inder at an angle 45 in the plane perpendicular to the axis see figure Refractive index of...
- Q 35 What is the position and nature of image formed by lens combination shown in figure where fi and f are focal lengths 2 JEE Main 2019 12 Jan Shift...
- Q 9 Angle of prism is A and its one surface is silvered Light rays falling at an angle of incidence 2A on first surface return back through the same path...
- Q 12 What should be the value of refractive index n of a glass rod placed in air so that the light entering through the flat surface of the rod does...
- Q 29 A conversing beam of rays is incident on a diverging lens Having passed though the lens the rays intersect at a point 15 cm from the lens on the...
- Q 59 A light ray is travelling through a ring of an optical fibre which is made of four different glasses shown below but each part has the same geometrical thickness...
- Q In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of objective lens The eyepiece forms a real image of this...
- Q 43 The angle of a glass prism is 4 50 and its refractive index is 1 52 The angle of minimum deviation will be 1 1 5 2 2 3...
- Q Calculate resolving power of microscope having focal length and diameter of objective lens as 5 cm and 1 cm 900 nm 1 1 82 x 10 m 2 5 x...
- Q his is made of glass of An equic refractive index 1 5 and has a focal length of 10 cm in air The lens is cut into two equal halves...
- Q An object is placed 20 cm from the surface of a convex mirror and a plane mirror is set so that virtual images formed by two mirrors coincide If plane...
- Q When the sun is directly overhead a narrow shaft of light enters an ancient temple through a small hole in the ceiling and falls on a mirror placed on the...
- Q 9 An optical of refractive index n surrounded by a transparent cladding of slightly lower index n If fibre is kept in medium of refractive index no then maximum acceptance...
- Q ith a a the y of be 8 Check Your The maximum value of index of refraction of a material of a prism which allows the passage of light through...
- Q Let the x z plane be the boundary between two transparent media Medium 1 in z20 has refractive index of 2 and medium 2 with z 0 has a refractive...
- Q light falls 63 A parallel beam of monochromatic on a combination of a convex lens and a concave lens of focallengths 15 cm and 5 cm If the light emerges...
- Q A point object is placed at a distance of 1000 mm from a concave mirror of focal length 400 mm If the object is moved towards the mirror by 200...
- Q A plane mirror is placed 22 5 cm in front of a concave mirror An object is placed between the two mirrors at 7 5cm from plane mirror so that...
- Q imple A convex mirror used for rear view on an automobile has a radi curvature of 3 00 m If a bus is located at 5 00 m from this...
- Q lly of equal height h are 4 12rad s Two candles distance of a from each other The distance between each candle and the nearest wall is also a With...
- Q 5 A ray of light travelling from air towards glass of refractive index u is incident normally This ray starts rotating at constant angular velocity about the point of incidence...
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