CBSE Class 11   CBSE Class 11 Physics

About the CBSE Class 11 Physics category (1)
What will be the acceleratioon of small block (1)
Which of the following potential energy curves in figure (2)
The stress-strain graph for a metal wire is given (3)
Find the height from the surface of earth at which weight of a body of mass tn reduced to 36% of its weight on the surface. (${{R}_{e}}$ = 6400 km.) (2)
The displacement of a particle moving in one dimension under the action of a constant force is (4)
A cricketer can throw a ball to a maximum horizontal distance of 100 m. How much high above the ground can the cricketer throw the same ball? (2)
Unit and measurement (2)
Unit and measurmemnt (1)
Explain why (or how) in a sound wave, a displacement node is a pressure antinode and vice-versa? (2)
Which harmonic mode of the pipe is resonantly excited by a 430 Hz source? (2)
The wave pattern on a stretched string is shown in figure (2)
A pipe 20 cm long is closed at one end (2)
A steel rod 100 cm long is clamped at its middle (2)
Two sitar strings A and B playing the note 'Ga' (2)
A narrow sound pulse (for example, a short pip by a whistle) is sent across a medium (2)
A bat emits ultrasonic Sound of frequency 1000 kHz in air (2)
The earth has a radius of 6400 km (2)
If c is rms speed of molecules in a gas (2)
Earthquakes generate sound waves inside the earth (2)
One end of a long string of linear mass density (2)
A stone dropped from the top of a tower of height 300 m (2)
Define and explain restoring force in case of an oscillating body (1)
A cylindrical piece of cork of base area A density p (2)
Show that for a particle in linear SHM (2)
A spring balance has a scale that reads from 0 to 50 kg (2)
Justify the following statements (2)
A spring compressed by 0.1 m develops a restoring force 10 N (2)
In case of an oscillating simple pendulum (2)
Plot the corresponding reference circle for each of the following (2)