Science Multi-chapter quiz

Image formed by a plane mirror is

• real and erect

• virtual and erect

• virtual and inverted

• real and inverted

To obtain an enlarged image of an object you can use-

(a) concave mirror

(b) concave lens

(c) convex lens

(d) convex mirror

• A & B

• C & D

• B & D

• A & C

Heat always flows-

• from a colder object to a hotter object

• in both the directions

• from a hotter object to a colder object

• heat never flows from one object to other

Determine the number of seconds there in a day

• 8640

• 864

• 6400

• 86400

State the factors on which the time period of a simple pendulum depend.

• Weight of Bob

• Length of pendulum

• both a & d

• acceleration due to gravity

• All of these

Which one of the following is not a breed of sheep?

• Lohi

• Marwari

• Murrah

• Nali

What is the scientific name of mulberry tree?

• Magnifera indica

• Morus alba

• Magnifera alba

• Morus indica

A marble tile would feel cold as compared to a wooden tile on a winter morning, because the marble tile:

• is a better conductor of heat than the wooden tile.

• is a more poor conductor of heat than the wooden tile.

• is polished while wooden tile is not polished.

• Because it's shiny

I spilled some haldi milk on my shirt, i went to clean it with a soap, but the stain turned dark-orange, why?

• because milk is an indicator and it indicated soap as base

• because soap is an indicator and it indicated haldi as base

• because haldi is an indicator and it indicated milk as base

• None of these

What is antacid?

• An acid present in ants

• An acid which is weak

• A acid which is used to cure heart burn

• A base which is used to cure heart burn