The image of a distant coloured object formed in a pinhole camera is always

• virtual, erect, coloured and diminished

• real, erect, coloured and diminished

• real, inverted, black and white and diminished

• real, inverted, coloured and diminished

Study the following table.

The group in which the parts of stamen and parts of pistil are correctly shown is

• A

• B

• C

• D

If you carefully dig a grass plant and observe its roots and leaves you will find that it has

• taproots and parallel venation

• taproots and reticulate venation

• fibrous roots and reticulate venation

• fibrous roots and parallel venation

An animal pops out its stomach through its mouth to eat the soft material of those animals which are covered by hard shells of calcium carbonate. After opening the shell and eating the soft material the stomach goes back into the body of the animal to slowly digest the food. The name of this animal is

• Crocodile

• Octopus

• Tortoise

• Starfish

The ratio between the lengths of small intestine and large intestine in the human body is

• 8 :1

• 5:1

• 1:5

• 1:8

The normal temperature of human body on the Celsius scale and Fahrenheit scales is respectively

• 37°C and 98.6°F

• 37°F and 98.6°C

• 37°C and 96.8°F

• 37°F and 96.8°C

Select the group of poor conductors of heat from the following.'

• Air, water, plastic

• Wool, wood, iron

• Water, copper, wood

• Air, aluminium, wool

The reason of sea breeze is

• During the day, the land gets heated faster than the seawater

• During the day, the seawater gets heated faster than the land

• At night, the land cools down more slowly than the seawater

• At night, the seawater cools down more slowly than the land

You have phenolphthalein solution in three test tubes A, B and C. On putting 2-3 drops of dilute hydrochloric acid in A, a solution of sodium hydroxide in B and distilled water in C, if you immediately observe the colour of the solution in each test tube, you will find that the solution in test tube.

• A is colourless, in B pink and in C colourless

• A is pink, in B pale green and in C colourless

• A is colourless, in B colourless and in C pink

• A is pale green, in B pink and in C pink

A student puts a drop of dilute solution of sodium hydroxide first on a blue litmus paper and then on a red litmus paper. He would observe that

• the blue litmus paper turns red and the red litmus paper turns blue

• there is no change in the blue litmus paper and the red litmus paper turns blue

• there is no change in the red litmus paper and the blue litmus paper turns red

• the blue litmus paper turns colourless and there is no change in the red litmus paper