Numerical Problems on Forces and Motion See here solved numerical problems of Forces and Motion included in the Physics course for grade 11. Problem 1An…

Problem 2: A certain radioactive isotope has half-life of 8 hours. A solution containing 500 million atoms of this isotope is prepared. How many atoms…

Explain how gravity is provided to the occupant of the space ship? Answer GRAVITY FOR THE OCCUPANT OF A SPACESHIP To have a spaceship in…

Superman, who has exceptionally strong arm, throws a fast ball with a speed of 0.9c. If the rest mass of the ball is 0.5 kg,…

A motor car is traveling at a speed of 30 m/s. If its wheel has a diameter of 1.5 m, find its angular speed in…

Comprehensive Questions on Rotational and Circular Motion Get to see the answers of Comprehensive Questions of Rotational and Circular Motion included in the new course…

Comprehensive Questions on Rotatory and Circular Motion See here answers of the comprehensive questions included in the new course of Physics, grade 11. S.No Description…

ساینس یا آرٹس اس کو شايد ہم تعلیمی زوال نہیں کہہ سکتے۔ کیونکہ طلبہ جب اپنے مستقبل کی ضروریات کا تعیـن کرتے ہیں تو وہ…

A sound source vibrates at 200 Hz and is receding from a stationary observer at 18 m/s. If the speed of sound is 331 m/s…

Problem 4: A soap film has a refractive index of 1.40. How thick must the film be if it appears black when mercury light of…