Enter Title

A

100

What is the equation that relate refractive index with critical angle.

n = 1/ sin c

200

Definition of deceleration 

Decrease rate of change of velocity / Decrease in velocity per unit time

300

Light travel from air to glass. 

Angle of incidence : 51 degree

Angle of refraction : 29 degree

Calculate the refractive index of glass.

1.6

400

A person walks towards East for 10 meters and then towards North for 10 meters. The total displacement traveled is:

14.14 meter

500

State ALL characteristics of image formed by a mirror?

Virtual, upright, laterally inverted, same size, same distance as from object to mirror.

B

100

Which Lady Gaga song was released on series Wednesday?

The Dead Dance 

200

State two conditions of total internal reflection 

• 1. The light ray in an optically denser medium strikes its boundary with an optically less dense medium.
• 2. The angle of incidence is greater than the critical angle of the optically denser medium.

300

Explain the process of conduction of thermal energy in metal.

Free moving electron 

Lattice vibration of particles

400

A car travels 100km. The journey takes two hours. The highest speed of the car is 80km/ h, and the lowest speed is 40km/ h. What is the average speed for the journey?

50km/h

500

What is the capital city of Australia?

Canberra

C

100

Definition of monochromatic light

Light with single frequency/ wavelength

200

What global position does Merdeka 118 hold in terms of being the tallest building in the world?

second

300

What fundamental process powers the sun?

Nuclear fusion

400

Which planet in our solar system has the greatest number of moons?

Jupiter (79 moons)

500

How does the image of the ant look like when observed through a magnifying glass ? List all characteristics of image. 

Virtual, upright, magnified

D

100

How does the Sun transmit heat to the Earth across the vast distance of space?

Trough infrared radiation

200

How does the loudness of a sound relate to the amplitude of its vibrations?

Larger amplitude

300

The average temperature on the surface of Pluto is 43 K. Convert this temperature to a value in degrees Celsius (°C).

-230 C

400

A SEE-SAW. On one side, there is a person with a weight of 600N. He is sitting 3m away from the pivot. On the other side is a person weighing 450N. How far away must (s)he sit?

4 m 

500

The Great Wall of China was primarily built during the rule of which Chinese dynasty?

Qin Dynasty

E

100

 Light rays are ..................  when they cross the interface between materials with different refractive indices.  

refracted

200

What is conservation of momentum ?

• In the absence of external forces, the total momentum of a system remains the same.
• in a collision, the sum of the momentums before the collision will be the same as the sum of momentums after the collision

300

How many awards did Ariana Grande receive at the current VMAs (2025) ?

3

400

A large stone is dropped from a bridge into a river. Air resistance can be ignored. What is the motion of stone?

Constant acceleration

500

What is the chemical formula or name for the compound commonly known as laughing gas?

N₂O / Nitrous oxide