Physics-
General
Easy
Question
The angular velocity of a wheel increases from 1200 rpm to 4500 rpm in 10 s. The number of revolution made during this time is
- 950
- 475
- 273.5
- 118.75
The correct answer is: 475
Related Questions to study
Physics-
A uniform thin rod of mass M and length L is standing vertically along the Y–axis on a smooth horizontal surface with its lower end at origin (0, 0). A slight disturbance at t = 0 causes the lower end to slip on smooth surface along the positive X–axis and the rod starts falling. The path followed by the centre of mass of the rod during its fall is a/an.
A uniform thin rod of mass M and length L is standing vertically along the Y–axis on a smooth horizontal surface with its lower end at origin (0, 0). A slight disturbance at t = 0 causes the lower end to slip on smooth surface along the positive X–axis and the rod starts falling. The path followed by the centre of mass of the rod during its fall is a/an.
Physics-General
Chemistry-
At 
, the vapour pressures of pure liquids, benzene and toluene are 160 mm Hg and 60 mm Hg, respectively.At the same temperature, the vapour pressure of an equimolar solution of the two liquids, assuming the ideal solution, should be
At , the vapour pressures of pure liquids, benzene and toluene are 160 mm Hg and 60 mm Hg, respectively.At the same temperature, the vapour pressure of an equimolar solution of the two liquids, assuming the ideal solution, should be
Chemistry-General
Chemistry-
The molecular weight of benzoic acid in benzene as determined by depression in the freezing point method corresponds to
The molecular weight of benzoic acid in benzene as determined by depression in the freezing point method corresponds to
Chemistry-General
Chemistry-
When mercuric iodide is added to the aqueous solution of potassium iodide,
When mercuric iodide is added to the aqueous solution of potassium iodide,
Chemistry-General
Chemistry-
An example of colligative property is
An example of colligative property is
Chemistry-General
Chemistry-
A molal solution is one that contains 1 mol of a solute in
A molal solution is one that contains 1 mol of a solute in
Chemistry-General
Chemistry-
Which condition is not satisfied by an ideal solution?
Which condition is not satisfied by an ideal solution?
Chemistry-General
Chemistry-
Based on the given diagram, which of the following statements regarding the solutions of two miscible volatile liquids are correct?
1.Plots AD and BC show that Raoult''s law is obeyed for the solution in which B is a solvent and A is the solute and as well as for that in which. A is solvent and B is solute
2.Plot CD shows that Dalton''s law of partial pressures is observed by the binary solutions of components A and B
3.
; and AC and BD corresponds to the vapour pressures of the pure solvents A andB,respectively
Select the correct answer using the codes given below: Codes:
Based on the given diagram, which of the following statements regarding the solutions of two miscible volatile liquids are correct?
1.Plots AD and BC show that Raoult''s law is obeyed for the solution in which B is a solvent and A is the solute and as well as for that in which. A is solvent and B is solute
2.Plot CD shows that Dalton''s law of partial pressures is observed by the binary solutions of components A and B
3.; and AC and BD corresponds to the vapour pressures of the pure solvents A andB,respectively
Select the correct answer using the codes given below: Codes:
Chemistry-General
Chemistry-
For a dilute solution, Raoult’s law states that
For a dilute solution, Raoult’s law states that
Chemistry-General
Chemistry-
A mixture of benzene and toluene forms
A mixture of benzene and toluene forms
Chemistry-General
Chemistry-
on reaction with
in aqueous solution gives blue colour. These are separated by a semi-permeable membrane AB as shown. Due to osmosis, there is
on reaction within aqueous solution gives blue colour. These are separated by a semi-permeable membrane AB as shown. Due to osmosis, there is
Chemistry-General
Chemistry-
The molalfreezing point constant of water is 1.86 K 
, If 342 g of cane sugar (
is dissolved in 1000 g of water, the solution will freeze at
The molalfreezing point constant of water is 1.86 K , If 342 g of cane sugar (is dissolved in 1000 g of water, the solution will freeze at
Chemistry-General
Physics-
for 
= 180, 
where K = 1Kg/N. Then direction and magnitude of friction force on contact surface will be 
for = 180, where K = 1Kg/N. Then direction and magnitude of friction force on contact surface will be
Physics-General
Physics-
The value of angle q for which spool will not move and not rotate.
The value of angle q for which spool will not move and not rotate.
Physics-General
Physics-
A disc of mass m and radius R is moving on a horizontal surface. If force F is acting on the disc. Then find the angular acceleration of disc
A disc of mass m and radius R is moving on a horizontal surface. If force F is acting on the disc. Then find the angular acceleration of disc
Physics-General
