Physics Past Questions and Answers

If a heavy barrel is rolled up a plane inclined at 30° to the horizontal. its velocity ratio will be

A 3.0
B 3.1
C 3.2
D 2.0

Question 1427:

I. Density of the liquid. II. Acceleration due to gravity. III. Type of container of the liquid. IV. The constituents of the liquid. which of the above conditions will NOT affect the pressure of fluid?

A I and III only
B II and III only
C III and IV only
D I and II only

Question 1428:

If a load of mass 10N stretched a cord by 1.2cm, what is the total work done?

A 6.0 x 10-2J
B 7.6 x 10-2J
C 1.8 x 10-2J
D 6.6 x 10-2J

Question 1429:

A plastic sphere floats in water with 50% of its volume submerged. if it floats in glycerine with 40% of its volume submerged,the density of the glycerine is?

A 1400 kgm-3
B 1250 kgm-3
C 500 kgm-3
D 1000 kgm-3

Question 1430:

The thermometer whose reading is indicated by a change in colour of its thermometric property is the?

A Bi-metalic strip thermometer
B Thermocouple
C Platinium resistance thermometer
D Optical pyrometer