Assessment Test-9 Everyday Science (MCQs)

The operation of solar cell is based on:

• (A) Laser technology
• (B) Photoconduction
• (C) Thermal emission
• (D) Tyndall effect

The minimum number of bits required to store hexadecimal number AF is:

• (A) 2
• (B) 4
• (C) 8
• (D) 16

Which of the following minerals is most resistant to chemical weathering:

• (A) Olivine
• (B) Quartz
• (C) Hornblende
• (D) Potassium feldspar

An igneous rock contains a radioactive isotope that has a half-life of 10 million years. Careful analysis shows that only one quarter of the original concentration of the parent isotope is left. How old is this igneous rock?

• (A) 10 Million years
• (B) 20 Million years
• (C) 30 Million years
• (D) 40 Million years

The discipline which deals with the understanding and treatment of mental health is called:

• (A) Applied psychology
• (B) Clinical psychology
• (C) Psychoanalysis
• (D) Psychiatry

Overcooking of food should be avoided because overcooking:

• (A) Makes the food difficult to digest
• (B) Makes the food toxic
• (C) Increase the nutritive value of food
• (D) Reduces the nutritive value of food

Optical fibre operates on the principle of:

• (A) Tyndal effect
• (B) Photoelectric effect
• (C) Laser technology
• (D) Total internal reflection

The sensation of the skin is perceived by:

• (A) Epidermis
• (B) The dermis
• (C) Endodermis
• (D) None of these

The loudness of sound depends on its:

• (A) Wavelength
• (B) Frequency
• (C) Amplitude
• (D) All of these

A person standing in front of a mirror finds his Image smaller than him and erect. this implies that the mirror is:

• (A) Plane
• (B) Concave
• (C) Convex
• (D) Not of good quality