(A) General theory of relativity
(B) Quantum theory
(C) Special theory of relativity
(D) Field theory of energy
Author:
?Cryogenics is a science dealing with
(A) Growth of crystals
(B) Friction and wear
(C) Low temperatures
(D) High temperatures
Atmospheric layer reflecting radio waves is called?
(A) Mesosphere
(B) Stratosphere
(C) Ozonosphere
(D) Ionosphere
Which law validates the statement that matter can neither be created nor destroyed?
(A) Law of Osmosis
(B) Law of conservation of mass
(C) Le Chatelier’s principle
(D) Law of conservation of energy
Lambert’s law is related to?
(A) Illumination
(B) Reflection
(C) Refraction
(D) Interference
For which of the following substances resistance decreases with an increase in temperature?
(A) Platinum
(B) Nichrome
(C) Copper
(D) Pure Silicon
For a body moving with non-uniform velocity and uniform acceleration?
(A) Velocity time graph is non-linear
(B) Velocity time graph is linear
(C) Displacement time graph is linear
(D) Displacement time graph is non-linear
Shrill
Meaning: باریک اور تیز آواز ۔ سیٹی کی طرح کی آواز
Explanation: (Adjective) – (of a voice or sound) high-pitched and piercing.
Example: A shrill laugh.
Synonyms: Deafening, Discordant, Earsplitting, Noisy.
Antonyms: Calm, Low, Mild.
[Dawn Vocabulary: 04-08-2022]