Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

In the circuit shown, the current in the 1\Omega resistor is :

 

  • Option 1)

    1.3 A ,from P to Q

  • Option 2)

    0 A

  • Option 3)

    0.13 A ,from Q to P

  • Option 4)

    0.13 A ,from P to Q

 
Capture5.JPG Sir/Madam , can you tell me what is the significance of DNA satellite in DNA fingerprinting? Gene in forms of DNA sequence - (Tip): By defining a cistron as a segment of DNA code for a polypeptide, The structural gene in a transcription unit could be said as monocistronic or polycistronic. Functional unit If inheritance located on the DNA Gene in forms of DNA sequence The monocistronic structural gene Types of RNA Functions of types of RNA Process Of Transcription Working of RNA polymerase Termination Transcription In Eukaryotes Splicing Cappinq Tailing Proposition made by George garow Salient features of genetics code Transcription unit Salient features Of genetics code phenylalanine Convention in deferning two strands of the DNA Convention in deferning two strands of the DNA The Promoter The Terminator t' RNA- the adapter molecule Initiator t-RNA Translation

Prevalence of pesticide resistant insects

 

A person is standing on a truck moving with a constant velocity of 14.7 m/s on a horizontal road. The man throws a ball in such a way that it returns to the truck after the truck has moved 58.8 m. Find the speed and the angle of projection (a) as seen from the truck, (b) as seen from the road.

 ) 
 

A particle p is projected from a point on the surface of a smooth inclined plane (see fig), simultaneously another particle Q isreleased on the smooth inclined plane from the same position. p and Q collide after t=4sec. The speed of  projection of  P is

In a vessel, the gas is at a pressure P. If the mass of all the molecules is halved and their speed is doubled, then the resultant pressure will be:

  • Option 1)

    4P

  • Option 2)

    2P

  • Option 3)

    P

  • Option 4)

    \frac{P}{2}

 

A rod of weight w is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The centre of mass of the rod is at distance x from A. The normal reaction on A is:

  • Option 1)

    \frac{wx}{d}

  • Option 2)

    \frac{wd}{x}

  • Option 3)

    \frac{w(d-x)}{x}

  • Option 4)

    \frac{w(d-x)}{d}

 

The dimension of \left ( \mu_{\text{o}}\in_{\text{o}} \right )^{-\frac{1}{2}} are :

  • Option 1)

    \left [ \text{L}^{-\frac{1}{2}}\text{T}^{\frac{1}{2}} \right ]

  • Option 2)

    \left [ \text{L}^{\frac{1}{2}}\text{T-}^{\frac{1}{2}}\right ]

  • Option 3)

    \left [ \text{L}^{-1}\text{T}\right ]

  • Option 4)

    \left [ \text{LT}^{-1}\right ]

 

What is stopping potential in photoelectric effect?

Q 4. $22 \hat{i}$ and $\hat{j}$ are unit vectors along the x - and y -axis, respectively. What is the magnitude and direction of the vectors $\hat{i}+\hat{j}$, and $\hat{i}-\hat{j}_{\text {? What are the components of a vector }} A=2 \hat{i}+3 \hat{j}$ along the directions of $\hat{i}+\hat{j}$ and $\hat{i}-\hat{j}_{\text {? [You may use the graphical }}$ method]

14.22 Show that for a particle in linear SHM the average kinetic energy over a period of oscillation equals the average potential energy over the same period.

15.12)  For the wave on a string described in Exercise 15.11, do all the points on the string oscillate with the same (a) frequency, (b) phase, (c) amplitude? Explain your answers. (ii) What is the amplitude of a point 0.375 m away from one end?

3. Draw the perpendicular bisector of XY whose length is 10.3 cm. (a) Take any point P on the bisector drawn. Examine whether PX = PY. (b) If M is the midpoint of XY, what can you say about the lengths MX and XY?

6. Find the ratio of the following :  81 to 108 

Is Volume of the body a derived quantity or Fundamental quantity ?
Have you ever wondered who invented M.K.S. (Meter, Kilogram and Second) System ?
If SI unit of mass is Kg then why we measure loaded truck mass in Metric tonne ?
Can a physical quantity have dimensions but no unit ?
Do you know SI unit and dimension of Angle
As we know, unit of Work is Nm (Newton-metre). Do you know why in Nm, 'N' is capitalized here but not 'm'?
What is the difference between force and impulse?
Is specific gravity is a dimensionless quantity?
Place a needle on tissue paper and very gently rest the paper on the surface of water.
Is there any existence of ideal gas in this world?
Exams
Articles
Questions