From A Group Of 8 Boys And 3 Girls A Committee Of 5 Members To Be Formed Find The Probability That
Solution: Option (2) 2/11 There are 8 boys and 3 girls The committee to be formed will have 5 members,... View Article
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An Urn Contains Nine Balls Of Which Three Are Red Four Are Blue And Two Are Green Three Balls Are Drawn
Solution: Option (2) 2/7 Total number of balls = 3+4+ 2 = 7 The probability that 3 balls have different... View Article
If Birth To Male Child And Birth To Female Child Are Equal Probable Then What Is The Probability That
Solution: Option (2) ⅞ Total number of children= 3 Let “p” be the probability of male child = ½ Hence,... View Article
Four Numbers Are Chosen At Random Without Replacement From The Set 1 2 3 20 Statement 1
Four numbers are chosen at random (without replacement) from the set {l, 2, 3, … , 20}. Statement I The... View Article
Let Omega Be A Complex Cube Root Of Unity With Omega Not Equal To 1 A Fair Die Is Thrown Three Times
Solution: Option (3) 2/9 As a fair die is thrown thrice, the total number of sample spaces is 216. In... View Article
Why Do We Use Slip Rings In Motors
Why do we use slip rings in motors? A slip ring motor has the following advantages. It uses a low... View Article
Is Pressure Directly Proportional To Volume
Is pressure directly proportional to volume? No!! According to Boyle’s law, at a constant temperature, the volume of the given... View Article
How Is A Dark Fringe Formed
How is a dark fringe formed? The dark fringes are formed due to destructive interference. Interference is said to be... View Article
What Is Meant By Capillary Depression
What is meant by capillary depression? When the cohesive force between the molecules of the liquid is greater than the... View Article
Can We Touch Real Image
Can we touch real image? Real images are formed by the intersection of the rays. The light rays intersect after... View Article
How Inverted Image Is Formed
How inverted image is formed?Inverted image means the image is upside down compared to the object. The real images formed... View Article
Why Thick Copper Strips Are Used In Meter Bridge
Why thick copper strips are used in meter bridge? The connection between the resistors in the metre bridge is done... View Article
What Is Stiffness Modulus
What is stiffness modulus? Young’s modulus is also called stiffness modulus. A stiff material has a high value of Young’s... View Article
What Will Happen If There Is No Thermal Equilibrium
What will happen if there is no thermal equilibrium? When there is no thermal equilibrium between the system there will... View Article
What Is Forced Frequency
What is forced frequency? Forced frequency is the frequency of the vibration generated by some fault in the machine, unbalance,... View Article
Do Longitudinal Waves Have A Frequency
Do longitudinal waves have a frequency? Yes, longitudinal waves have frequency. The frequency of the longitudinal wave is the number... View Article
What Is Slow Process In Thermodynamics
What is slow process in thermodynamics? Quasi-static process is called a slow process in thermodynamics. It is a process that... View Article
Is Resonance Energy Positive Or Negative
Is resonance energy positive or negative? The resonance energy of any compound will always be negative. The resonance energy is... View Article
Which Ions Will Be Reduced During Electrolysis
Electrolysis is the process of breaking down ionic substances into simpler substances by passing an electric current through them. Which... View Article
Why Bjt Is Called Transistor
Why BJT is called transistor? BJT or Bipolar junction transistor is a type of transistor that uses both electrons and... View Article
