Question

(b) excellent news he said, smiling at the visitor and then he was lost in thought "but... look here Krishna
he said turning to the young man, if this Compton Effect is true of X-rays, it must be true of light too rewrite the punctuation​

Answer 1

Answer:

"Excellent News!", he said, smiling at the visitor and then he was lost in thought."But..look here Krishna", he said, turning to the young man,"If this Crompton effect is true of X-rays, it must be true of light too".

Answer 2

"Excellent news!" he said, smiling at the visitor, and then he was lost in thought. "But, look here, Krishna,"  he said turning to the young man, "If this Compton Effect is true of X-rays, it must be true of light too."

• Punctuation errors of a sentence refer to errors in punctuation marks like full stop, comma, brackets, quotation marks, exclamation mark, capital letter, etc
• For direct speech, quotation marks need to be added. In the given text, "excellent news", "but, look here Krishna", "if this Compton Effect is true of X-rays, it must be true of light too" are examples of direct speech.
• A sentence must start with a capital letter.