Related Questions

Two monochromatic waves having frequencies $$\omega $$ and $$\omega + \Delta \omega \left( {\Delta \omega \ll \omega } \right)$$    and corresponding wavelengths $$\lambda $$ and $$\lambda - \Delta \lambda \left( {\Delta \lambda \ll \lambda } \right)$$    of same polarization, travelling along X-axis are superimposed on each other. The phase velocity and group velocity of the resultant wave are respectively given by
What is/are true about ridge regression?
1. When lambda is 0, model works like linear regression model
2. When lambda is 0, model doesn't work like linear regression model
3. When lambda goes to infinity, we get very, very small coefficients approaching
04. When lambda goes to infinity, we get very, very large coefficients approaching infinity.
It is very important to study lambda biology as lambda phages are used for cloning purposes. Which of the statement is true for lambda phage?
The optical source used in a fiber is an injection laser with a relative spectral width $$\frac{{{\sigma _\lambda }}}{\lambda }$$ of 0.0011 at a wavelength of 0.70μm. Estimate the RMS spectral width.
The value of Trouton's ratio $$\left( {\frac{{{\lambda _{\text{b}}}}}{{{{\text{T}}_{\text{b}}}}}} \right)$$  for a number of substances is 21 (where, $${{\lambda _{\text{b}}}}$$ = molal that of vaporisation of a substance at its normal boiling point, kcal/kg.mole and Tb = normal boiling point, °K). The Kis-tyakowsky equation is used for calculation of Trouton's ratio of __________ liquids.
Suppose you have fitted a complex regression model on a dataset. Now, you are using Ridge regression with tuning parameter lambda to reduce its complexity. Choose the option(s) below which describes relationship of bias and variance with lambda.
The ‘IS’ keyword is used instead of the ‘AS’ keyword when creating a standalone function in PL/SQL.
Which keyword is used in conjunction with DISTINCT keyword?
Which of the following is/are true for an abstract class? i) Abstract classes in PHP are declared with the help of abstract keyword. ii) A class is declare abstract by using the keyword implements. iii) It is a class that really isn’t supposed to ever be instantiated but instead serves as a base class. iv) Attempting to instantiate an abstract class results in an error.
To combine multiple retrievals, we write several SELECT statements and put the keyword between them. What is the keyword?