Home
Class 11
PHYSICS
Digital signals (i) do not provide a c...

Digital signals
(`i`) do not provide a continuous set of values.
(`ii`) represents values as descrete steps.
(`iii`) can utillize binary system
(`iv`) can utillize decimal as well as binary system.
The true option is.

A

Only (i) and (ii)

B

Only (ii) and (iii)

C

(i),(ii) and (iii), but not (iv)

D

All the above (i) to (iv)

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    ALLEN |Exercise Part-3(Exercise-2)|49 Videos

  • SEMICONDUCTORS

    ALLEN |Exercise Part-3(Exercise-3)|27 Videos

  • SEMICONDUCTORS

    ALLEN |Exercise Part-3(Exercise-4)|50 Videos

  • PHYSICAL WORLD, UNITS AND DIMENSIONS & ERRORS IN MEASUREMENT

    ALLEN |Exercise EXERCISE-IV|7 Videos

  • WAVES AND OSCILLATIONS

    ALLEN |Exercise Part-1(Exercise-05)[B]|42 Videos

Similar Questions

Explore conceptually related problems

Two stars bound together by gravity orbit othe because of their mutual attraction. Such a pair of stars is referred to as a binary star system. One type of binary system is that of a black hole and a companion star. The black hole is a star that has cullapsed on itself and is so missive that not even light rays can escape its gravitational pull therefore when describing the relative motion of a black hole and companion star, the motion of the black hole can be assumed negligible compared to that of the companion. The orbit of the companion star is either elliptical with the black hole at one of the foci or circular with the black hole at the centre. The gravitational potential energy is given by U=-GmM//r where G is the universal gravitational constant, m is the mass of the companion star, M is the mass of the black hole, and r is the distance between the centre of the companion star and the centre of the black hole. Since the gravitational force is conservative. The companion star and the centre of the black hole, since the gravitational force is conservative the companion star's total mechanical energy is a constant. Because of the periodic nature of of orbit there is a simple relation between the average kinetic energy ltKgt of the companion star Two special points along the orbit are single out by astronomers. Parigee isthe point at which the companion star is closest to the black hole, and apogee is the point at which is the farthest from the black hole. Q. For circular orbits the potential energy of the companion star is constant throughout the orbit. if the radius of the orbit doubles, what is the new value of the velocity of the companion star?

A block is released on the slant face of a wedge of equal mass placed on a horizontal floor. The slant face of the wedge makes an angle of 45^(@) with the floor. Coefficient of friction between all surfaces in contact is the same. Different value/ range of coefficient of friction is given in column I and corresponding consequences in column II and III (wedge is fress to move) {:(,"Column-I",,"Column-II",,"Column-III",),((I),mu=0,(i),"Work done by friction on block and wedge is negative (on each)",(P),"Centre of mass of system (block+wedge) moves rightward and downward",),((II),mu gt 1,(ii),"Work done by friction on block is negative but on wedge it is zero",(Q),"Centre of mass of system (block+wedge) moves leftward and downward",),((III),sqrt(5)-2 lt mu lt 1,(iii),"Work done by friction on block and wedge is zero (on each)",(R ),"Centre of mass of system (block+wedge) remains at rest",),((IV),mu lt sqrt(5) - 2,(iv),"Friction between the block and wedge is static and between the wedge and ground it is kinetic in nature.",(S),"Centre of mass of system (block+wedge) moves vertically downward",):} Which of the following options is the correct representation of the case that the wedge remains motionless and the block slides down

ALLEN -SEMICONDUCTORS-Part-3(Exercise-1)
  1. Amplitude modulation is used for broad casting because

    Text Solution

    |

  2. Frequencies in the UHF range normally propagate by means of

    Text Solution

    |

  3. Digital signals (i) do not provide a continuous set of values. (ii...

    Text Solution

    |

  4. An 'antenna' is:

    Text Solution

    |

  5. Long distance short-wave radio broadcasting uses

    Text Solution

    |

  6. The power in a two-wire transmission line travels :-

    Text Solution

    |

  7. For television broadcasting, the frequency employed is normally

    Text Solution

    |

  8. The sound waves after being converted into electrical waves are not tr...

    Text Solution

    |

  9. The process of superimposing signal frequency (i.e. audio wave) on the...

    Text Solution

    |

  10. In an amplitude modulated wave for audio-frequency of 500Hz, the appro...

    Text Solution

    |

  11. If there were no atmosphere, the average temperature on the surface of...

    Text Solution

    |

  12. The T.V. transmission tower in Delhi has a height of 240 m. The distan...

    Text Solution

    |

  13. Which of the following is used to produce radio waves of constant ampl...

    Text Solution

    |

  14. The maximum distance upto which TV transmission from a TV tower of...

    Text Solution

    |

  15. For sky wave propagation of a 10 MHz signal, what should be the minimu...

    Text Solution

    |

  16. In short wave communication waves of which of the following frequeunci...

    Text Solution

    |

  17. For sky wave propagation of a 10 MHz signal, what should be the minimu...

    Text Solution

    |

  18. In frequency modulation

    Text Solution

    |

  19. Range of frequencies allotted for commercial FM radio broadcast is

    Text Solution

    |

  20. Sound produced by a tining fork is a sort of :-

    Text Solution

    |