## Light from the sun travels a distance before it reaches the Earth?

A. 50 million km
B. 150 million km
C. 100 million km
D. None of these

Correct Answer: B. 150 million km

The correct answer is B. 150 million km.

Light from the sun travels an average distance of about 150 million kilometers (93 million miles) to reach the Earth. This distance can vary slightly depending on the Earth’s position in its elliptical orbit around the sun, but on average, it’s about 150 million kilometers

## What is the speed of light in vacuum?

A. 300 Million m/s
B. 300 Million m/h
C. 300 Million K/s
D. 300 Million k/h

Correct Answer: A. 300 Million m/s

The correct answer is A. 300 Million m/s. The speed of light in a vacuum is approximately 299,792,458 meters per second, often rounded to 300 million meters per second for simplicity. This value is a fundamental constant in physics and is denoted by the symbol “c”

## Which area in a lake mainly nourished by detritus?

A. Limnetic Zone
B. Littoral Zone
C. Profundal Zone
D. All of these

A. Vitamin A
B. Vitamin B
C. Vitamin C
D. Vitamin D

## The Heisenberg Uncertainty Principle states that it is impossible to determine accurately what of fast moving particles simultaneously?

A. Position and quanta
B. Principal and secondary quantum numbers
C. Electrostatic attraction
D. Position and momentum

Correct Answer: D. Position and momentum

A. Blue
B. Green
C. Yellow
D. Yellow-Green

A. Lambda
B. Nu
C. Phi
D. Kappa

A. Pauli
B. Bohr
C. Aufbau
D. Hertz

A. de Broglie
B. Planck
C. Schrodinger
D. Thomson