1st PUC Physics Previous Year Question Papers. We covered all the 1st PUC Physics Previous Year Question Papers MCQs in this post for free so that you can practice well for the exam.
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1st PUC Physics Previous Year Objective Question Papers for Students
Where should an object be placed in front of a convex lens to get a real and enlarged image of the object?
(a) At twice the focal length
(b) At infinity
(c) Between the principal focus and twice the focal length
(d) Beyond twice the focal length
Option c – Between the principal focus and twice the focal length
A ray of light traveling from a rarer medium to a denser medium:
(a) Slows down and bends away from the normal
(b) Slows down and bends towards the normal
(c) Speeds up and bends away from the normal
(d) Speeds up and bends towards the normal
Option b – Slows down and bends towards the normal
What is the effect of the pressure of a human body on sand?
(a) Larger while standing than while lying
(b) Smaller while standing than while lying
(c) Same while standing or lying
(d) Larger while standing during the daytime and smaller during the nighttime while lying
Option a – Larger while standing than while lying
An electron and a photon have the same de Broglie wavelength. It implies that they have the same:
(a) Linear momentum
(b) Energy
(c) Speed
(d) Angular momentum
Option a – Linear momentum
Oil and water do NOT mix because of the property of:
(a) Bulk modulus
(b) Shear strain
(c) Volume effect
(d) Surface tension
Option d – Surface tension
Which one of the following statements on the photoelectric effect is NOT correct?
(a) Albert Einstein received the Nobel Prize in Physics for explaining the photoelectric effect
(b) For each metal, there is a threshold frequency vo below which this effect is not observed
(c) At a frequency v > vo, the kinetic energy of ejected electrons does not change on increasing the frequency of incident light
(d) The number of electrons ejected is proportional to the intensity of incident light
Option c – At a frequency v > vo, the kinetic energy of ejected electrons does not change on increasing the frequency of incident light
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