A racing car going at an average speed of 108 km/hr takes 15 minutes to complete a lap on a racing track. By how much should it increase its speed (in km/hr) to complete the lap in 12 minutes?
Distance of the lap=108*(1/4) =27 kilometers Time in which lap has to be completed=12 minutes=12/60 =1/5 hr Speed=27/(1/5) =135 km/hr Increase=135-108 =27 km/hr
Magnesium has atomic number as 12. Find out its valiancy.
Which of the following statement is/are true?
I. Atomic radius increases in moving from left to right along a period.
II. Atomic size...
The force of attraction between the particles of matter is maximum in______.
100 gram of ice at 0°C is mixed with 100 gram of water at 80°C. What will be the final temperature of the mixture ?
Which of the following is correct regarding isobars?
I. They have different atomic numbers
II. The have same mass numbers
Anesthesia which is administered during the surgeries in the hospitals is a mixture of which of the following gases?
Which of the following relation is correct?
Which of the following statement regarding Rutherford nuclear model is NOT correct?
The insecticide gammexane is chemically known as:
_______ is a common name of ethanoic acid.