Find the arithmetic mean of the following frequency distribuion class Frequency 15-20 3 20-25 8 25-30 9 30- 35 10 35-40 3 40-45 2

Answer:

Spin is directional and can be said to have odd parity. It follows that transitions in which the spin "direction" changes are forbidden. In formal terms, only states with the same total spin quantum number are "spin-allowed".

• We know that electrons have clockwise and anti-clockwise spin.
• When electrons absorb energy they undergo transition to higher energy levels.
• Electrons may also de-excite from higher to lower energy levels.
• So during this transition,only those transitions are allowed where the spin of the electron doesnot change.

Explanation:

काली मिर्च को मसालों का राजा माना जाता है।

The sentence can be changed into reported speech as follows:

She said that her hobby was writing poems.

What is direct and indirect speech?

• In the field of English grammar, direct speech can be described as such a speech in which the actual words of the speaker are used.
• In the field of English grammar, such a speech in which we use our own words to describe what someone has said is referred to as indirect speech.
• The quotation marks or inverted commas are removed in indirect speech.

Explanation:

my hobby is writting poem change in to repoted speech

Answer:

it helps with a sense of presence for a better immersive experience.

Explanation:

It is important to ensure an effective enriching experience and presence.

• It is vital for a greater mesmeric experience because it aids in the sense of presence.
• It is a mechanism that is employed in gadgets that provide feedback as they are used. It aids in the establishment of a sense of presence.
• It also establishes an emotional connection, and wellbeing, as well as the exploration and interaction with objects and the provision of 360° sensory feedback.
• In the car industry, it allows manufacturers to provide non-visual means of interaction, allowing drivers to spend less time looking away from the road.