View the new MCQs of Physics for the upcoming 2021 examinations at Physics MCQs Class 11 NEW
Category: Physics MCQs Class 11
Physics solved multiple choice questions (MCQs) for class 11 or first year with answers.
A heat engine absorbs 50J of energy and give 45J of work. Its efficiency will be:
(A) 60%
(B) 70%
(C) 80%
(D) 90%
Answer: (D) 90 %
The triple point of water is:
(A) 273K
(B) OK
(C) 273.16K
(D) 37K
Answer: (C) 273.16K
Which is not optically active?
(A) Sugar
(B) Tartaric acid
(C) Water
(D) Milk
Answer: (C) Water