Question
Who measured the velocity of light
first?Solution
Galileo is often credited with being the first scientist to try to determine the speed of light. Galileo's experiment was carried out by the Accademia del Cimento of Florence, Italy, in 1667, with the lanterns separated by about one mile, but no delay was observed. The actual delay in this experiment would have been about 11 microseconds. The first quantitative estimate of the speed alight was made in 1676 by Romer.
What does trypsin do?
What is the colour of the outer zone of complete combustion of candle flame?
Which of the following statement is/are true?
I. Metal oxides are acidic in nature
II. Non-metallic oxides are basic in nature
Which of the following isotope of hydrogen is radioactive in nature?
Which of the following is a water soluble vitamin?
Which of the following is correct regarding isobars?
I. They have different atomic numbers
II. The have same mass numbers
What is the nature of the pH of milk?
Chlorophyll-a is present in all photosynthetic organisms except
Water from soil enters into the root hairs owing to :
_____ is used for making chemical apparatus like beakers, flasks, etc.
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