Questions

Number of spectral lines from a state n to ground state is

                   n(n-1)/2 = 6

The main component of bones and teeth is Calcium Phosphate.

The total angle traced by the hour hand is the angle traced in 7 hours and 10 minutes.
We know that the angle traced by the hour hand in one hour is 30º and in one minute is 1/2º.
Therefore, (30º x 7) + (10 x 1/2º) = 215º is the angle traced by the hour hand.

Kothagudam is in Andhra Pradesh. The sponge iron will act as a substitute for steel scrap and be used as feed stock of electric arc steel making.

The Largest Mint in India is Kolkata Mint.

Government of India operates 4 Mints in the country for the production of Coins. They are at

• Hyderabad, Telangana

• Mumbai, Maharashtra

• Kolkata, West Bengal

• Noida, Uttar Pradesh. 

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