Answer:
halve the slit separation
Explanation:
As we know that
In YDS experiment, the equation of fringe width is as follows

where,
D denotes the separation in the middle of screen and slits
d denotes the distance in the middle of two slits
And to increase the Δx we have to decrease the d i.e, the distance between the two slits
Hence, the first option is correct
Answer:
I think it's c or A hopes this help
When a candle is burning the candle is releasing thermal and radiant energy
Answer:
It is false, many fossils have bones and fur (etc) in them