Podcast
Questions and Answers
What is the approximate thickness of a material that can stop alpha particles?
What is the approximate thickness of a material that can stop alpha particles?
- Few meters of steel
- Few cm of lead
- Few mm of aluminium
- Few mm of paper (correct)
What material is most effective at stopping gamma rays?
What material is most effective at stopping gamma rays?
- Paper
- Aluminium
- Steel
- Lead (correct)
Which type of radiation is most easily stopped by a thin layer of material?
Which type of radiation is most easily stopped by a thin layer of material?
- Beta particles
- Alpha particles (correct)
- Gamma rays
- X-rays
What is the order of increasing penetration power of the three types of radiation?
What is the order of increasing penetration power of the three types of radiation?
Which material is not suitable for stopping alpha particles?
Which material is not suitable for stopping alpha particles?
In which type of medium does wave travel perpendicular to the vibration of the medium?
In which type of medium does wave travel perpendicular to the vibration of the medium?
What occurs during the vibration of a rope or a spring?
What occurs during the vibration of a rope or a spring?
In which type of medium does wave travel parallel to the vibration of the medium?
In which type of medium does wave travel parallel to the vibration of the medium?
What is the direction of wave travel in a rope relative to the vibration of the rope?
What is the direction of wave travel in a rope relative to the vibration of the rope?
What is the movement of energy referred to in the context of vibration in ropes and springs?
What is the movement of energy referred to in the context of vibration in ropes and springs?
Which type of electromagnetic wave is visible to the human eye?
Which type of electromagnetic wave is visible to the human eye?
What is the characteristic of ionising electromagnetic waves?
What is the characteristic of ionising electromagnetic waves?
What is the order of the electromagnetic spectrum from longest wavelength to shortest?
What is the order of the electromagnetic spectrum from longest wavelength to shortest?
What is the wavelength of visible light in nanometers?
What is the wavelength of visible light in nanometers?
Which type of electromagnetic wave has a wavelength of 10^2 meters?
Which type of electromagnetic wave has a wavelength of 10^2 meters?
What is the device used to measure the electromotive force (e.m.f.) in the given circuit?
What is the device used to measure the electromotive force (e.m.f.) in the given circuit?
What is the component labelled as 'COIL' in the given circuit?
What is the component labelled as 'COIL' in the given circuit?
What is the function of the 'BAR MAGNET' in the given circuit?
What is the function of the 'BAR MAGNET' in the given circuit?
What is the symbol 'NNNN' likely to represent in the given circuit?
What is the symbol 'NNNN' likely to represent in the given circuit?
What is the physical phenomenon that occurs when a coil is placed in a changing magnetic field?
What is the physical phenomenon that occurs when a coil is placed in a changing magnetic field?
What is the reason for induced e.m.f. in the coil?
What is the reason for induced e.m.f. in the coil?
What is the state of the bar magnet during the induction of e.m.f.?
What is the state of the bar magnet during the induction of e.m.f.?
What is the outcome of the interaction between the coil and the bar magnet?
What is the outcome of the interaction between the coil and the bar magnet?
What is the direction of the magnet in relation to the coil?
What is the direction of the magnet in relation to the coil?
What is the type of energy induced in the coil?
What is the type of energy induced in the coil?
