Question
If a coin is tossed 10 times then what is the
probability of getting three heads?Solution
Total sample spaces = 2¹⁰ Total favourable events N(P) = ¹⁰C₃ Probability (E) = (N(P))/(N(S)) = (¹⁰C₃ )/(2¹⁰) = (¹⁰C₃ )/(2^5. 2⁵) = ((10 × 12 )/(3 × 2))/(32 × 32) = (10 × 12)/(32 × 32) = 15/128
What is the SI unit of magnetic flux?
If the vector sum of torques acting on a system is zero, then the object is in:
What was invented by 'Zacharias Janssen'?
An electric motor converts _____ energy to mechanical energy.
A body explodes into three equal fragments, two of which fly off perpendicular to each other with equal speeds. What is the direction of the third frag...
Two cars A and B are running at velocities of 60km per hour and 45 km per hour. What is the relative velocity of car A with respect to car B, if both ar...
A plane mirror is placed on a wall. A man walks directly toward the mirror at 2 m/s. The speed at which his image approaches him is:
When a cannonball is fired, its motion is an example of ______.
Which of the following is an alpha particle which is emitted in radioactivity?
Which of the following equations correctly represents the momentum p of a photon of Energy E?
Relevant for Exams:
