The half-life of a radio-isotope is 5 years. The fraction of atoms decayed in this substance after 15 years will be (A) 8-May (B) 8-Jul (C) 4-Mar (D) 1 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
The volt/metre is the unit of: (A) Force (B) Work (C) Potential (D) Electric field intensity 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
What remains constant when the earth revolves around the sun? (A) Linear kinetic energy (B) Linear momentum (C) Angular kinetic energy (D) Angular momentum 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
A train of 150 m length is going towards north direction at a speed of 10 ms-1. A parrot flies at a speed of 5 ms-1towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to (A) 8 s (B) 10 s (C) 12 s (D) 15 s 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
Band spectrum is produced by (A) Na (B) H (C) H2 (D) He 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
Blood has a density (A) None of these (B) Equal to water (C) Greater then water (D) Lesser then water 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
An object is placed at a distance of f/2 from a convex lens. The image will be (A) At, 3f/2, real and inverted (B) At f, real and inverted (C) At 2f, virtual and erect (D) At one of the foci, virtual and double its size 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
The peak voltage in 220 volt A.C. supply is nearly (A) 311 volt (B) 440 volt (C) 253 volt (D)220 volt 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
The magnetic moment of a circular coil carrying current is (A) Inversely proportional to the square of the length of the wire in the coil (B) Directly proportional to the length of the wire in the coil (C) Inversely proportional to the length of the wire in the coil (D) Directly proportional to the square of the length of the wire in the coil 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021
Which one of the following is a simple harmonic motion? (A) A wave moving through a string fixed at both ends (B) A particle moving in a circle with uniform speed (C) Earth spinning about its own axis (D) Ball bouncing between two rigid vertical walls 0 Physics MCQs Author: sinxoo Report : If answer is wrong. July 31, 2021