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Yogita Ingle 18 hours ago

Amplitude Modulation (AM) Frequency Modulation (FM)
First successful audio transmission was carried out in the mid-1870s Developed in 1930 by Edwin Armstrong, in the United States
The radio wave is called a carrier wave and the frequency and phase remain the same The radio wave is called a carrier wave, but the amplitude and phase remain the same
Has poor sound quality, but can transmit longer distance Has higher bandwidth with better sound quality
The frequency range of AM radio varies from 535 to 1705 kHz The frequency range of FM is 88 to 108 MHz in the higher spectrum
More susceptible to noise Less susceptible to noise
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Yogita Ingle 5 days, 14 hours ago

The 1878 Forest Act, divided forests in India into three categories reserved, protected and village forests.
The consequences of this Act were :

  1. Villagers used forests for different needs, i.e. for fuel, fodder and leaves. After Forest Act they could not take anything from the reserved forests.
  2. In forest areas people graze their cattle, collect fruits and roots and hunt animals and fish. Almost everything was available in the forest for their livelihood. The Forest Act meant severe hardship for them. All their practices became illegal.
  3. Circumstances forced the villagers to steal wood and if they were caught, forest guard claimed bribe from them. Women who collected fuelfood were scared of the forest guards as they harassed them and demanded free food.
  4. After the Forest Act, the forest department only encouraged to plant Teak and Sal tree for commercial uses.
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Yogita Ingle 6 days, 13 hours ago

In binomial system of nomenclature, the generic name of a species always starts with a capital letter whereas the specific name starts with a small letter. Therefore, the correct scientific name of Mango is Mangifera indica.

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Yogita Ingle 2 weeks, 5 days ago

Positively loaded or neutral species are called electrophiles that are deficient in electrons and can accept a couple of electrons. These are also called species that love electron (philic).

  • The term electrophile can be split into “electro” derived from electron and “phile” which means loving.
  • They are electron deficient and hence electrons loving.
  • They are positively charged or neutrally charged.
  • They attract electrons. Movement of electrons depends on the density.
  • They move from high-density area to low density area.
  • They undergo electrophilic addition and electrophilic substitution reactions.
  • An electrophile is also called as Lewis acid.

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