A
What is the equation that relate refractive index with critical angle.
n = 1/ sin c
Which Lady Gaga song was released on series Wednesday?
The Dead Dance
Definition of monochromatic light
Light with single frequency/ wavelength
How does the Sun transmit heat to the Earth across the vast distance of space?
Trough infrared radiation
Light rays are .................. when they cross the interface between materials with different refractive indices.
refracted
Definition of deceleration
Decrease rate of change of velocity / Decrease in velocity per unit time
State two conditions of total internal reflection
What global position does Merdeka 118 hold in terms of being the tallest building in the world?
second
How does the loudness of a sound relate to the amplitude of its vibrations?
Larger amplitude
What is conservation of momentum ?
Light travel from air to glass.
Angle of incidence : 51 degree
Angle of refraction : 29 degree
Calculate the refractive index of glass.
1.6
Explain the process of conduction of thermal energy in metal.
Free moving electron
Lattice vibration of particles
What fundamental process powers the sun?
Nuclear fusion
The average temperature on the surface of Pluto is 43 K. Convert this temperature to a value in degrees Celsius (°C).
-230 C
How many awards did Ariana Grande receive at the current VMAs (2025) ?
3
A person walks towards East for 10 meters and then towards North for 10 meters. The total displacement traveled is:
14.14 meter
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
Which planet in our solar system has the greatest number of moons?
Jupiter (79 moons)
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
A large stone is dropped from a bridge into a river. Air resistance can be ignored. What is the motion of stone?
Constant acceleration
State ALL characteristics of image formed by a mirror?
Virtual, upright, laterally inverted, same size, same distance as from object to mirror.
What is the capital city of Australia?
Canberra
How does the image of the ant look like when observed through a magnifying glass ? List all characteristics of image.
Virtual, upright, magnified
The Great Wall of China was primarily built during the rule of which Chinese dynasty?
Qin Dynasty
What is the chemical formula or name for the compound commonly known as laughing gas?
N2O / Nitrous oxide