Physics question and answers for November 08, 2023
- Q Two converging lenses of focal lengths f and f2 are placed with their optical axes coinciding This lens system is used to form image of an object If it is...
- Q 3 Denser medium from a rarer i i 4 Denser medium from a rarer i i A bubble in glass slab p 1 5 when viewed from one side appears...
- Q Light of wavelength 600 nm is incident on a aperture of size 2mm The distance upto which light can travel such that its spread is less than the size of...
- Q A ray of light is incident from air on to surface of a glass medium Which of the following quantities change as the light enters the glass medium wavelength I...
- Q A lens of focal length fa in air consists of glass refractive index g If f is its focal length in a liquid refractive index then for g 1 f...
- Q 40 Two identical thin plano convex glass lenses refractive index 1 5 each having radius of curvature of 20 cm are placed with their convex surfaces in contact at the...
- Q 42 In an astronomical telescope in normal adjustment a straight black line of lenght L is drawn on inside part of objective lens The eye piece forms a real image...
- Q SolveLancer Test In the given figure a thin lens is made of material with u 1 5 which has one surface silve Radius of curvature of spherical surface is R...
- Q 14 Unpolarised light surface of a material of refractive index u At a particular angle of incidence i it is found that the reflected and refracted rays are perpendicular to...
- Q 3 An astronomical refracting telescope will have large angular magnification and high angular resolution when it has an objective lens of 1 small focal length and large diameter 2 large...
- Q A thin prism having refracting angle 10 is made of glass of refractive index 1 42 This prism is combined with another thin prism of glass of refractive index 1...
- Q An object 10 0 cm in length is placed at a di stance of 30 cm in front of a convex mirror of radius of curvature 40 cm The position...
- Q A convex mirror is dipped in a liquid whose refractive index is equal to the refractive index of material of mirror Then its focal length will Become zero O Become...
- Q 3 Behind a thin converging lens having both the surfaces of the same radius 10 cm a plane mirror has been placed The image of an object at a distance...
- Q Two transparent media of refractive indices and u have a solid lens shaped transparent material of refractive index between them as shown in figures in Column II A ray traversing...
- Q i The lens is thin so that the distances measured from the poles of its two surfaces can be taken as equal to the distances from its optical centre ii...
- Q a R1 As the position of an object u reflected from a concave mirror is varied the position of the image v also varies By letting the u change from...
- Q A capacitor of capacitance C is connected across a battery of emf E and negligible internal resistance What is the value of energy stored in between the plates of a...
- Q Two polaroids are placed in the path of unpolarized 16 beam of intensity I such that no light is emitted from the second polaroid If a third polaroid whose polarization...
- Q 2 A converging beam of rays is incident on a diverging lens Having passed through the lens the rays intersect at a point 15 cm from the lens on the...
- Q If the angle of a wedge is 0 25 and the wavelength of sodium lines are 5890 A and 5896 A find the distance from the apex at which the...
- Q 1 The frequency of a light wave in a material is 2 10 4 Hz and wavelength is 5000 A The refractive index of material will be 2007 b 3...
- Q 4 The value of magnification m produced by an optical device 2 What is the size and nature of an object of height 3cm 06cm virtual and erect image 03cm...
- Q A point source M is placed at a distance of 30 cm from a convex lens of focal length 20 cm on its principal Axis where should a con vex...
- Q An object is placed at a distance of 40 cm from a concave mirror of focal length 15 cm If the object is displaced through a distance of 20 cm...
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