CBSE Class 11-science Answered
Define 1 m and 1 sec in terms of wavelength.
Asked by ayushikas | 19 Jul, 2011, 01:09: AM
Expert Answer
One metre is defined as to be equal to 1,650,763.3 wavelengths in vacuum of the radiation emitted due to transition between the levels 2p10 and 5d5 of the isotope of Krypton having mass number 86.
One second is defined as to be equal to the duration of 9,192,631,770 vibrations corresponding to the transition between two hyperfine levels of Cesium-133 atom in the ground state.
Answered by | 18 Jul, 2011, 10:13: PM
Concept Videos
CBSE 11-science - Physics
Asked by derhebha955 | 03 Apr, 2024, 09:03: AM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by sumedhasingh238 | 29 Mar, 2024, 05:15: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by sumedhasingh238 | 28 Mar, 2024, 11:10: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by rosysahu678 | 02 Mar, 2024, 06:09: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by ss4172380 | 14 Nov, 2023, 08:05: AM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by doddisriman | 29 Oct, 2023, 09:43: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by sanketnaik338 | 04 Oct, 2023, 09:13: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by mayankvaram96 | 01 Oct, 2023, 06:01: AM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by Naveensharma2007 | 26 Jun, 2023, 06:54: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by bhargavchary19 | 23 Dec, 2022, 07:33: AM
ANSWERED BY EXPERT