Which lens is used in sodium reflector lamp ?
Convex mirrors are used as reflectors in sodium reflector lamps because they are able to spread the light over a wide area. The neon gas lights at a lower temperature. As the temperature increases the sodium begins to vaporize and the lamp turns to a pure yellow. Argon has a lower glow voltage, argon helps the smaller lamps start at a lower voltage. The larger LPS lamps used in street lighting for the most part do not use argon.
Copper tools from which age were found in Meerut and Saharanpur?
Who has been appointed as the Managing Director of National Asset Reconstruction Company (NARCL)?
When is International Dog Day celebrated across the globe?
What growth forecast for India did S&P Global Ratings retain for FY25?
In New Delhi, India, from February 21 to 23, 2024, which edition of the Raisina Dialogue was held?
Slightly less than _______ of the freshwater is stored as groundwater in the world's aquifers.
Articles 14 to 18 of the Indian Constitution deal with:
Which of the following states is the first to create the role of Director-General of Audit?
World's shortest teenager - just 2ft 5in at the age of 18 was recognised by Guinness World Records, he hails from which country?
Who has been appointed as the next Chief of the Indian Army, effective from June 30, 2024?
