User Forum

Read the given statements and select the correct answer.
Statement 1 : The distance x at which a car can be stopped by applying brakes depends on the initial velocity.
Statement 2 : Mass of the car has no role to play.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true and statement 2 is false.
D Both statements 1 and 2 are false.

Which of the following adaptations of camel are not meant for tolerating heat and water scarcity of deserts?
(i) Long legs and padded wide feet.
(ii) Brown body colour.
(iii) Long eyelashes.
(iv) Nostrils with flaps.

A(i) and (ii) only
B(iii) and (iv) only
C(ii), (iii) and (iv) only
D(i), (ii) and (iii) only

A metal rod is shaped into a ring with a small gap. If this is heated, which of the following will not occur?

(A) The length of the rod will increase.

(B) The gap will decrease.

(C) The gap will increase.

Look at the picture :

Which statement incorrectly describes the animal shown?
(i) It shows parental care.
(ii) It has hair on its body.
(iii) It is a bird
(iv) It reproduces by laying eggs.

A (i) and (ii)
B (iii) and (iv)
C (ii) and (iv)
D (i) and (iii)

The given circuit diagram shows four bulbs in a circuit. Where should a switch be installed so that only one bulb can be switched on or off while the others remain lit all the time ?

(A) A

(B) B

(C) C

Which two environmental changes usually cause certain animals to migrate?

Achange of season and fewer predators
Bchange of season and less food
Closs of habitat and fewer predators
Dloss of habitat and more food

(i) Girls grow taller than boys.

(ii) Girls and boys have different set of hormones which control their growth.

(iii) Girls grow faster than boys.

(iv) Height of girls and boys depends on the genes inherited from their parents.

(A) (i) & (iii)

(B) (ii) & (iii)

(C) (iv) only

Which of the following is correct?

AJaundice is not a communicable disease
BLeprosy is a non-contagious disease of skin
CCholera spread through the contaminated air
DTetanus can be occurred due to entry of germs through cut skin

Without friction there would be

Aless machine efficiency.
Bgreater output work than input work.
Cgreater input work than output work.
Dequal input and output work.

Study the given flowchart and identify the processes P, Q, R and S involved in the separation of the mixture.

                    P                             Q                         R                S
A Sublimation     Magnetic separation     Filtration        Evaporation
BMagnetic          Filtration separation     Sublimation     Evaporation
CEvaporation     Magnetic separation     Filtration          Sublimation
DSublimation     Magnetic separation     Evaporation     Filtration