Question
A man running with the speed of 65 km/hr covers a
certain distance in ‘x’ hours. If the same distance can be travelled with a speed of 70 km/h in (x - 2) hours, then find the value of ‘x’.Solution
According to question, 65x = 70(x - 2) 70x – 65x = 140 5x = 140 x = 28
Which lens is used to correct myopia (shortsightedness)?
Which law states that “an object remains at rest or in uniform motion unless acted upon by an external force”?
In which type of motion does the velocity of a body vary with time?
What is the rate of change of momentum called?
What is the electrical charge of a neutrino?
________ are the elements of group 18.
The half-life of a radioactive substance is 10 days. The time in which only 1/8th of the original substance remains is:
In an atom, which particles are responsible for chemical bonding?
When a passenger in a moving bus is suddenly thrown forward when the bus stops, this is explained by:
When white light passes through a glass prism, which color deviates the least?
Relevant for Exams:
