Match the corresponding entries of Column 1 with Column 2. [Where m is the magnification produced by the mirror]
Column 1 Column 2
A. m=-2 a. Convex mirror
B. m=-1/2 b. Concave mirror
C. m=+2 c. Real image
D. m=+1/2 d. Virtual Image
(1)A->a and c;B->a and d; C->a and b; D->c and d
(2)A->a and d; B->b and c; C->b and d; D-> b and c
(3)A->c and d; B->b and d;C->b and c;D->a and d
(4)A->b and c; B->b and c; C->b and d; D->a and d
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe angle of incidence for a ray of light at a refracting surface of a prism is 45°. The angle of prism is 60°. If the ray suffers minimum deviation through the prism, the angle of deviation and refracting index of the material of the prism respectively are
(a)30°,
(b)45°,
(c)30°,
(d)45°,
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn astronomical telescope has an objective and eyepiece of focal lengths 40 cm and 4 cm respectively. To view an object 200 cm away from the objective, the lenses must be separated by a distance of :
(1) 46.0 cm
(2) 50.0 cm
(3) 54.0 cm
(4) 37.3 cm
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn air bubble in a glass slab with refractive index 1.5 (near normal incidence) is 5 cm deep when viewed from one surface and 3 cm deep when viewed from the opposite face. The thickness (in cm) of the slab is
(1) 8
(2) 10
(3) 12
(4) 16
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo identical glass equi-convex lenses of focal length each are kept in contact. The space between the two lenses is filled with water . The focal length of the combination is
(a) (b)
(c) (d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA beam of light from a source L is incident normally on a plane mirror fixed at a certain distance x from the source. The beam is reflected back as a spot on a scale placed just above the source L. When the mirror is rotated through a small angle , the spot of light is found to move through a distance y on the scale. The angle is given by
(1)
(2)
(3)
(4)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe refractive index of the material of a prism is and the angle of the prism is 30°. One of the two refracting surfaces of the prism is made a mirror inwards with a silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) if the angle of incidence on the prism is:
2. 45o
3. 30o
4. zero
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn object is placed at a distance of 40 cm from a concave mirror of a focal length of 15 cm. If the object is displaced through a distance of 20 cm towards the mirror, the displacement of the image will be:
1. 30 cm away from the mirror
2. 36 cm away from the mirror
3. 30 cm towards the mirror
4. 36 cm towards the mirror
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA beam of light from a source L is incident normally on a plane mirror fixed at a certain distance x from the source. The beam is reflected back as a spot on a scale placed just above the source L. When the mirror is rotated through a small angle , the spot of the light is found to move through a distance y on the scale. The angle is given by:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA thin prism having refracting angle 100 is made of glass of refractive index 1.42. This prism is combined with another thin prism of a glass of refractive index 1.7. This combination produces dispersion without deviation. The refracting angle of the second prism should be:
1. 60
2. 80
3. 100
4. 40
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology