1st PUC Physics Model Question Paper. We covered all the 1st PUC Physics Model Question Paper MCQs in this post for free so that you can practice well for the exam.
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1st PUC Physics Model Objective Question Paper for Students
A myopic person has a power of -1.25 Dioptre. What is the focal length and nature of his lens?
(a) 50 cm and convex lens
(b) 80 cm and convex lens
(c) 50 cm and concave lens
(d) 80 cm and concave lens
Option d – 80 cm and concave lens
Which one of the following statements about a bar magnet is correct?
(a) The pole strength of the north pole of a bar magnet is larger than that of the south pole
(b) When a piece of a bar magnet is bisected perpendicular to its axis, the north and south poles get separated
(c) When a piece of a bar magnet is bisected perpendicular to its axis, two new bar magnets are formed
(d) The poles of a bar magnet are unequal in magnitude and opposite in nature
Option c – When a piece of a bar magnet is bisected perpendicular to its axis, two new bar magnets are formed
Which one of the following statements is not correct?
(a) Atoms of different elements may have the same mass numbers
(b) Atoms of an element may have different mass numbers
(c) All the atoms of an element have the same number of protons
(d) All the atoms of an element will always have the same number of neutrons
Option d – All the atoms of an element will always have the same number of neutrons
Matter around us can exist in three different states, namely, solid, liquid, and gas. The correct order of their compressibility is:
(a) Liquid < Gas < Solid
(b) Solid < Liquid < Gas
(c) Gas < Liquid < Solid
(d) Solid < Gas < Liquid
Option b – Solid
The temperature at which a solid melts to become a liquid at atmospheric pressure is called its melting point. The melting point of a solid is an indication of:
(a) strength of the intermolecular forces of attraction
(b) strength of the intermolecular forces of repulsion
(d) molecular size
Option a – strength of the intermolecular forces of attraction
Which one of the following statements is not correct?
(a) Sound waves in gases are longitudinal in nature
(b) Sound waves having a frequency below 20 Hz are known as ultrasonic waves
(c) Sound waves having higher amplitudes are louder
(d) Sound waves with high audible frequencies are sharp
Option b – Sound waves having a frequency below 20 Hz are known as ultrasonic waves
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