Interference of light waves... ...bends light as it passes around the edge of an

ID: 478060 • Letter: I

Question

Interference of light waves... ...bends light as it passes around the edge of an object or as it passes through a narrow slit. ...separates light into its component colors. ...can either cancel or enhance the amplitude of the wave depending on the nature of the interference. ... focuses a broad beam of light into a single narrow point. ...is destructive in nature, causing the light to disappear. Which of the following ions are isoelectronic to Argon (Ar): Mn^2+ P^3- Mg^2+ Br^3- All of them Which of the following forms of electromagnetic radiation has the shortest wavelength? Infrared X rays Blue light Yellow light Sound waves What is the effective nuclear charge acting on the outermost electron of an atom of sulfur (s)? Z_eff = +4 Z_eff = +2 Z-eff = +6 Z_eff = -2 Z_eff = +16 The square of the wave function (PSI) of an electron in an atom... ...is proportional to the velocity of the electron ...is inversely proportional to the distance between the electron and the nucleus. ...describes the energy of the electron. ...specifies the momentum of the electron ...gives probability of finding the electron the in a region of space.

Explanation / Answer

Interference of light waves

Answer

Can either cancel or enhance the amplitude of the wave depending on the nature of interference.

It can be constructive or destructive interference.

It is a process in which two waves superpose to frame a resultant influx of more prominent, lower, or a similar amplitude. It is more often than not alludes to the connection of waves that are corresponded or lucid with each other, either in light of the fact that they originate from a similar source or on the grounds that they have the same or about a similar frequency

Question 9

Isoelectronic to argon [Ar]

Answer =P^-3

Neutral argon (Ar) is isoelectronic (has the same number of electrons) as P^-3

Question 10

Shortest wavelength

Answer : x- rays

Explanation

wave

wavelength

x- rays

1 nm

Infra red

10 mu m

Blue light

400 nm

Yellow light

600 nm

Sound waves

1 m

Question 11

Effective nuclear charge acting on the outermost electron of an atom of sulphur (S)

(1s2) (2s2, 2p6) (3s2, 3p4)

Effective nuclear charge, Z* = Z -

Where, Z= Atomic number,

= Shielding or screening constant.

(1s2) (2s2, 2p6) (3s2, 3p4)

= (0.35 × 3) + (0.85 × 8) + (1 × 4) = 11.85=12

Effective nuclear charge, Z* = Z -

=14-12=4

Answer =

OPTION A

Z EFF= +4

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Question 12

THE square of the wave function of an electron in a atom

e) gve the probabaility of finding the electron in a atom space-answer

The square of the wave function :

It is referred as the probability of finding the electron at a given point in space.