Science Quiz

What is this Effect?

• Refraction

• Reflection

• Dispersion Of Light

• Spreading of Light

Which of the following statements is/are correct?
(i) All green plants can prepare their own food.

(ii) Most animals are autotrophs.
(iii) Carbon dioxide is not required for photosynthesis.
(iv) Oxygen is liberated during photosynthesis.

• (i) and (ii)

• (ii) only

• (i) and (iv)

• All Of These

The raw materials used for photosynthesis are:

• CO₂, O₂ H₂

• O_2, water

• N₂, water

• CO₂, water

Time Period Of a Simple Pendulum is the time taken by it to travel from...

• O to A, A to O and O to B

• A to B and back to A

• A to B

• None of these

Ananya is observing her image in a plane mirror. The distance between her image and her mirror is 6 meters. She moves 2 meters towards her mirror. Then what is the distance between Ananya and her image?

(a)  

Choose the odd one out.

• Butterwort

• Sundew

• Venus flytrap

• Mistletoe

Air expands on __________.

• Heating

• Cooling

• Drying

• None of the above

which astronomer performed experiment using simple pendulum

(a)  

baking a cake is a _____ change

• physical

• chemical

What type of mirror is A and What type of Mirror is B?

• Mirror A is convex

  &

  Mirror B is concave

• Mirror A is Concave

  &

  Mirror B is Convex

• Mirror A is Plane

  &

  Mirror B is Concave

• None Of These

Answer explanation

Mirror B is convex , It forms a smaller image of frok. Mirror A is concave: It forms a larger image of fork