Kasthmandap Academic Centre Koteshwor Kathmandu

HSEB English
What is the apparent (exact) purpose of the speech of Martin
Luther King Jr.? Explain King’s analogy of bad check (cheque).
Ans. The apparent purpose of King’s speech is to get the black people
their rights of freedom, equality and justice avoiding racial injustice
based on color of skin. Although the constitution of America promises
equal rights to its entire citizen, the black people have been deprived
from enjoying the rights and get the victim of social segregation and
discrimination. Therefore Martin Luther King Jr. Delivers this speech
demanding justice for the black people.
King makes an analogy (comparison) between promises of an
American constitution and a bad check. Though the constitution of
America promises equal right rights to the entire citizen irrespective of
colour and creed, America has failed to pay her black citizen the rights
promised in the constitution. They are given bad check i.e. false
promises by architects of American constitution. If there is insufficient
amount in the bank out, the cheque of higher amount issued against this
account is not enchased and returned unpaid such cheque is consider as a
bad check. Similar way although the constitution of America guarantees
the equality for all, the black citizens are turned down from getting
justice in America. Therefore, king compares the promises made by the
American constitution with a bad check.

HSEB-XII PHYSIC SHORT QUESTION (photon and electron )2071 Q.Explain why electric discharge through a gas at low presure take place?
Ans:when you reduce a presure at high pd then mean free path or say intermolecular space for charged particle increased due to which they acquire more kinetic energy(do you know in more free space object acquire more K.E ?). Due to greater kinetic energy charged particle ionize and more ions and electron are produced due to collisions. At the same time movement of positive and negative ion toward cathod and anode increses so discharge happen at low pressure. Bt at high presure there is no enough free space to acquire sufficient k.e so ionization become difficult.