engineering recuitment DRDO CEPTAM STA B Tier I (Sr. Technical Assistant) Mock Test 2022 General Science Physics Units and Dimensional Formula
Which one of the following units is defined as the luminous intensity in a given direction of a source that emits monochromatic radiation of frequency 540 × 1012 hertz?
1
Angstrom
2
Lux
3
Candela
4
Weber