A conveyor belt is moving at a constant speed of 2 m/s. A box is gently dropped on it. The coefficient of friction between them is µ = 0.5. The distance that the box will […]
A projectile is fired at an angle of 45° with the horizontal. Elevation angle of the projectile at its highest point as seen from the point of projection is
Options
(a) 60° (b) […]
A body is moving with velocity 30 m/s towards east. After 10 seconds its velocity becomes 40 m/s towards north. The average acceleration of the body is
Options
(a) 1m/s² (b) 7 m/s² […]
A boy standing at the top of a tower of 20m height drops a stone. Assuming g = 10 ms⁻², the velocity with which it hits the ground is
Options
(a) 10 m/s […]
A particle covers half of its total distance with speed v1 and the rest half distance with speed v2. Its average speed during the complete journey is
Options
(a) (v1v2)/(v1+v2) (b) (2v1v2)/(v1+v2) (c) […]
Which one of the following statements is correct
Options
(a) seeds or orchids have oil rich endosperm (b) placentation in primrose is basal (c) flower of tulip is a modified shoot (d) in […]
Consider the following four statements (A-D) related to the common frog Rana tigrina, and select the correct option stating which ones are true (T) and which ones are false (F) Statements: (A)On dry land it […]
The ciliated columnar epithelial cells in humans are known to occur in :
Options
(a) eustachian tube and stomach lining (b) bronchioles and fallopian tubes (c) bile duct and oesophagus (d) fallopian tubes […]
Which one of the following statements is correct about plants?
Options
(a) In tomato, fruit is a capsule (b) Seeds of orchids have oil-rich endosperm (c) Placentation in primose is basal (d) Flower […]
Which one of the following structures in Pheretima is correctly matched with its function?
Options
(a) Clitellum – secretes cocoon (b) Gizzard – absorbs digested food (c) Setae- defence against predators (d) Typhlosole […]
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