light year
/ˈlaɪt jɪə(r)/noun
उच्चारण लाइट यिअर
प्रकाश-वर्ष (अंतरिक्ष में दूरी की इकाई)
Core wordPYP · asked 1 time
Asked in previous papers
as idiom
SSC CGL Pre 2021
noun
- 1
[C] technical
a unit for measuring distance in space, equal to the distance that light travels in one year, about 9.46 million million kilometres
प्रकाश-वर्ष (अंतरिक्ष में दूरी की इकाई)
- The nearest star to the Sun is just over four light years away.
- Some galaxies are millions of light years from the Earth.
- Light from that star takes four years to arrive, so it is four light years away.
+ 2 more examples
- A light year is a measure of distance, not of time.
- The galaxy lies thousands of light years from us.
- 2
[usually plural] informal
a very long time or a very great difference in development or quality
बहुत लंबा समय, बहुत बड़ा अंतर
- Her ideas were light years ahead of her time.
- Our village school is light years away from the facilities of a city school.
- Technology has moved light years ahead since my grandfather's time.
+ 2 more examples
- Their rivals are light years behind in quality.
- This phone is light years better than my old one.
§Grammar and usage
Usage: a light year measures distance, not time, which is a common trap in GK questions.
Usage में light year दूरी की इकाई है, समय की नहीं, और GK प्रश्नों में यह एक आम जाल है।