1.A bus covers the first 10 km of its journey at an average speed of 40 km/h and the remaining 45 km at an average speed of 60 km/h. The average speed of the bus for its total journey is-
A.52.5 km/h
B.55km/h
C.50km/h
D.57.5km/h
2.Select the correct statement regarding rods and cones in the human eyes-
A.Cones are sensitive to dim light
B.Rods are sensitive to bright light
C.Cones are sensitive to bright light
D.Rods can sense colour
3.An object is vibrating at 5000Hz. The time period of the sound produced is-
A.0.005s
B.0.02s
C.0.0002s
D.0.5s
4.Which one of the following planets has no natural satellite of its own?
A.Uranus
B.Mars
C.Venus
D.Jupiter
5.Which one of the following sets is the combination of organs of human digestive system that do not carry out any digestive function?
A.Oesophagus, large intestine, rectum
B.Buccal cavity, Oesophagus, large intestine,
C.Buccal cavity, large intestine, rectum
D.Buccal cavity, Oesophagus, rectum
6.Select from the following a set of ruminants-
A.Buffalo, cow, deer
B.Cat, Buffalo, Deer
C.Buffalo, Cow, deer
D.Cow, Deer, dog
7.The pseudopodia of amoeba are used for-
A.Movement & capture of food
B.Sensing the food only
C.Capturing the food only
D.Movement only
8.Impression of an image persist on the retina of human eye for about-
A.1/25 second
B.1 second
C.1/2 second
D.1/15 second
9.The ultrasound equipment used for investigating medical problems work at frequency-
A.Above 20000Hz
B.Below 20 Hz
C.Between 20 Hz & 200000Hz
D.Between 2000Hz & 20000Hz
10.A solid rectangular block of iron is kept over the top of a table with its different faces touching the table. In different cases, the solid block exerts-
A.Different forces but same pressure
B.Same force and same pressure
C.Same force but different pressure
D.Different forces and different pressures
