Write two properties which cannot be explain by wave nature of radiation.
1 Answers
Talk Doctor Online in Bissoy App
Wavelength of radiation incident on a surface is 850 nm. Will the surface become visible when exposed to this radiation? Explain.
As we know, the range of wavelength of visible radiation is from 400 nm to 700 nm. The radiation having wavelength greater than 700 nm is termed as infra-red radiations...
1 Answers 1 views
Which of the following properties show that light is a transverse wave ?
(d) Polarization. EXPLANATION: The reflection, interference and diffraction effects are shown by both transverse and longitudinal waves. But polarization is only possible with a transverse wave because the transverse displacement of...
1 Answers 1 views
Which of the following properties of light conclusively support wave theory of light ?
(b) Speed of light in water is smaller than the speed in vacuum. (c) Light shows interference. EXPLANATION: The reflection can happen in both waves and particles. The photoelectric effect shows the...
1 Answers 1 views
A student is studying the properties of acetic acid. List two physical properties of acetic acid he observes.
Acetic acid is colourless liquid. It is miscible/ soluble in water. On adding a pinch of sodium hydrogen carbonate, Brisk effervescence is observed. Evolution of a colourless/ odourless gas.
1 Answers 1 views
Among the properties (A) reducing (B) oxidising (C) complexing, the set of properties shown by CN^– ion towards metal species is
(c) : CN– ions act both as reducing agent as well as good complexing agent.
1 Answers 1 views
What is space wave communication? Write the range of frequencies suitable for space wave communication.
When a wave propagates in a straight line, from the transmitting antenna to the receiving antenna, its mode of propagation is called space wave communication. Frequency range: Above 40MHz
1 Answers 1 views
Ejection of photo electron from silver metal can be stopped by applying a voltage of 0.35 volt, when radiation of wave length of 256.7 x 10^-9
Energy of incident radiation= hc/ ʎ Put the values =7.74 x 10-19 J =7.74 x 10-19 x 1.602 x 10-19 = 4.83 eV W0 = E- KE =4.83 - 0.35 =4.48 eV
1 Answers 1 views
Classify the following properties as extensive and intensive properties: Molar heat capacity, temperature, enthalpy and volume.
Extensive properties : Enthalpy and volume. Intensive properties: Molar heat capacity, temperature.
1 Answers 1 views
List three properties of sodium in which it differs from the general physical properties of most metals.
Three properties of sodium are : (i) Sodium is so soft that it can be cut with a knife.
1 Answers 1 views