Question : The quality or tone of a musical sound produced by a stringed instrument depends on:

Option 1: frequency of vibration

Option 2: length of strings in the instrument

Option 3: Amplitude of vibration

Option 4: wave form of the sound

Question : Quality of a musical note depends on:

Option 1: Fundamental frequency

Option 2: Amplitude of the wave

Option 3: Harmonics present

Option 4: Velocity of sound in the medium

Question : Name the high frequency radiation produced in nuclear reactions and also emitted by radioactive nuclei that is used in medicine to destroy cancer cells.

Option 1: Ultraviolet waves

Option 2: Gamma rays

Option 3: Light waves

Option 4: X-rays

Question : Which actinide, discovered by Glenn T. Seaborg in 1940, is used as a heat source for sensitive electrical components in satellites as well as a power source for satellites?

Option 1: Curium

Option 2: Plutonium

Option 3: Nobelium

Option 4: Americium

Question : ______ software are freely available and can be edited and customized by anyone.

Option 1: Free Source

Option 2: Open Source

Option 3: Easy Source

Option 4: Unpaid Source