In stretching a spring by 2 cm, energy stored is given by U. Had is been stretched
In stretching a spring by 2 cm, energy stored is given by U. Had is been stretched by 10 cm,…
8 years ago
Questions
Two identical flutes produce fundamental notes of frequency 300 Hz at 27° C
Two identical flutes produce fundamental notes of frequency 300 Hz at 27° C. If the temperature of air in one…
8 years ago
If the sodium light in Young’s double slit experiment is replaced by red light
If the sodium light in Young's double slit experiment is replaced by red light, the fringe width will Options (a)…
8 years ago
540 g of ice at 0° C is mixed with 540 g of water at 80° C. The final temperature
540 g of ice at 0° C is mixed with 540 g of water at 80° C. The final temperature…
8 years ago
The radius of the convex surface of a plano-convex lens is 20 cm and the refractive index
The radius of the convex surface of a plano-convex lens is 20 cm and the refractive index of material of…
8 years ago
A radioactive substance contains 10000 nuclei and its halflife period is 20 days
A radioactive substance contains 10000 nuclei and its halflife period is 20 days. The number of nuclei present at the…
8 years ago
Surface tension of a solution is 30 x 10⁻² N/m. The radius of the soap bubble is 5 cm
Surface tension of a solution is 30 x 10⁻² N/m. The radius of the soap bubble is 5 cm. The…
8 years ago
The dimensional formula of Plancks’s constant and angular momentum are
The dimensional formula of Plancks's constant and angular momentum are Options (a) ML²T⁻¹ and MLT⁻¹ (b) ML²T⁻¹ and ML²T⁻¹ (c)…
8 years ago
The displacement of a particle varies according to the relation x=4 (cos π t + sin π t)
The displacement of a particle varies according to the relation x=4 (cos π t + sin π t). The amplitude…
8 years ago
The total kinetic energy of a body of mass 10 kg and radius 0.5 m moving with a velocity
The total kinetic energy of a body of mass 10 kg and radius 0.5 m moving with a velocity of…
8 years ago