Question : The mercury and sodium street lamps light up because of:
Option 1: Atomic emission
Option 2: Atomic absorption
Option 3: Electron emission
Option 4: Electron absorption
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: Atomic emission
Solution : The correct option is atomic emission.
Light is produced by atomic emission in mercury and sodium street lights. When an electric current flows through the lamp's vaporised mercury or sodium, electrons in the atoms become excited and subsequently return to their ground state, releasing energy in the form of visible light. This technique produces the distinctive light of these lamps.
Candidates can download this ebook to know all about SSC CGL.
Admit Card | Eligibility | Application | Selection Process | Preparation Tips | Result | Answer Key
Question : Oil raises the wick in a lamp because
Question : In the grasslands, trees do not replace the grasses as a part of an ecological succession because of:
Question : When metal is heated in a flame , the electrons absorb energy and jump to higher energy state. On coming back to lower energy state hey emit light which we can observe in
Question : Before the rise of the modern industrial system, Indian exports consisted chiefly of manufactures like________.
Question : Select the most appropriate option to fill in the blank.
The Magic Fountain is renowned for ______ spectacular light and music shows.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile