ThePrismSolutions

ThePrismSolutions

DAILY PRACTICE PAPER(11Th July 2018)



Q1. The velocity of light is maximum in a medium of...........?

(A) Diamond
(B) Water
(C) Glass
(D) Vaccum



Q2. A light of wavelength 320nm enters in a medium of refractive index 1.6 from the air of refractive index 1.0. The new wave length of light in the medium will be........nm.

(A) 520
(B) 400
(C) 320
(D) 220



Q3. "Bhautik" runs towards a plane mirror with a speed of 20 ms-1, what is the speed of his image ?

(A) 45 ms-1
(B) 20 ms-1
(C) 15 ms-2
(D) 7.5 ms-1



Q4. A ray of light is incident at an angle 30deg on a mirror, The angle between normal and reflected ray is.........

(A) 15°
(B) 30°
(C) 45°
(D) 60°



Q5. The no. of images formed between two parallel plane mirror are ..............

(A)infinity
(B)0
(C)180
(D)360



Q6. To get five images of a single object one shold have two plane mirrors at an angle of ................

(A) 36°
(B) 72°
(C) 180°
(D) 302°



Q7. If a glass rod is immersed in a liquid of the same refractive index, then it will ..............

appear bent
(A) appear bent
(B) appear longer
(C) disappear
(D) appear shorter



Q8. For four different transperent medium n41 × n32 × n21 = ..................

(A) 1/n41
(B) n41
(C) n14
(D) 1/n14



Q9. A plane mirror produces a magnification of ..........

(A) 0
(B) +1
(C) -1
(D) infinity



Q10. A convex lens forms a real image of an object for its two different position on a screen if hight of the image in both cases be 16 cm and 4 cm then height of the object is ........ cm.

(A) -4
(B) 4
(C) -8
(D) 8



ANSWER


(Ans 1.) D

(Ans 2.) C

(Ans 3.) B

(Ans 4.) D

(Ans 5.) A

(Ans 6.) B

(Ans 7.) C

(Ans 8.) D

(Ans 9.) B

(Ans 10.) D


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