51. The spoon dropped by an astronaut in a satellite will –

1. Fall to the floor
2. Remain stationary
3. Continue to follow the motion of the satellite
4. Move tangentially away

Option “3” is correct.
The spoon dropped by an astronaut in a satellite will continue to follow the motion of the satellite.
52. “Curie” is the unit of –

1. Radioactivity
2. Temperature
3. Heat
4. Energy

Option “1” is correct.
The Curie (symbol Ci) is a non-SI unit of radioactivity.
53. The Source of the sun’s energy, is the process of –

1. Photoelectric emission
2. Nuclear fission
3. Nuclear fusion
4. Thermionic emission

Option “3” is correct.
Sun generates its energy by nuclear fusion of hydrogen nuclei into helium.
54. The half life of a radioactive substance is 10 day; it means there will be:

1. complete decay of substance in 20 days
2. complete decay of substance of 40 days
3. decay of ¾ part of substance in 20 days
4. decay of ¼ part of substance in 5 days

Option “3” is correct.
The half life of a radioactive substance is 10 days; it means in next 10 days there will be half of the remaining radioactive substance. Thus, total 20 days, there will be decay of 75% or ¾ part of substance.
[1/2+1/4=3/4]
55. At absolute temperature, the electric resistance in semiconductor is-

1. Infinite
2. Small
3. High
4. Zero

Option “1” is correct.
The electrical conductivity of a semiconductor at absolute zero temperature is zero and they behave like an insulator. At this temperature the electric resistivity becomes infinite.
56. Which elements is the best conductor of electricity?

1. Silver
2. Copper
3. Alminium
4. Iron

Option “1” is correct.
Electrical conductivity is a measure of the amount of electrical current under a material can carry. The most electrically conductive element is silver followed by copper, aluminium and iron.
57. The velocity of sound is maximum in-

1. Air
2. Liquid
3. Metal
4. Vacuum

Option “3” is correct.
Velocity of sound is maximum in metal and minimum in gases.
58. Instrument for measuring rainfall is called –

1. Lucimeter
2. Galactometer
3. Hyetometer
4. Hygrometer

Option “3” is correct.
Hyetometer is the instrument used to measure rainfall.
59. Who established the foundations of the quantum theory?

1. Max Planck
2. Mark Nicholas
3. Albert Einstein
4. Alfred Hitchcock

Option “1” is correct.
Max Planck was a German theoretical physicist, considered to be the initial founder of quantum theory, and one of the most important physicists of the 20th Century.
60. If in a motion, the axis of the rotation passes through an object, the motion is called _________.

1. Orbital motion
2. Circulatory motion
3. Spin motion
4. Oscillatory motion

Option “3” is correct.
In physics, spin is the velocity of rotation of something around a particular axis.
Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

68 thoughts on “Physics”

  8. Dolly.

    Hi I’m dolly..
    Jo bhi lok ye app download krk pdhai krr kre hai vo unka future boht hi jyada bright hone vala hai.. because baat free off cost prhne ki nahi hai,baat kaise study krne ki hai…fhir chahe vo jaise bhi ho…main sbko bss itna hi kehna chahti hu ke boh ache se iss app ka use kro and kisi bhi competitive exam ke liye ye app boht acha hai…and please comment jrur chod ke jna .. thank you

  10. lista escape roomów

    hey there and thank you for your info – I’ve certainly picked up something
    new from right here. I did however expertise several technical points using this website, as I experienced
    to reload the website lots of times previous to I could
    get it to load correctly. I had been wondering if your hosting is OK?
    Not that I am complaining, but sluggish loading instances times will very frequently affect your
    placement in google and can damage your high quality score if advertising and marketing
    with Adwords. Anyway I am adding this RSS to my e-mail and can look out for much more of your respective intriguing content.
    Make sure you update this again soon.. Escape rooms hub

  52. JamesHat

    ¡Saludos, apostadores entusiastas !
    casinosextranjero.es – juega desde el extranjero – п»їhttps://casinosextranjero.es/ п»їcasinos online extranjeros
    ¡Que vivas increíbles recompensas sorprendentes !

  54. quantkiolanthe

    Why It’s Collectable Tudor quietly dabbles in link making watches with logo-dialed watches for companies. These Air France editions are two of only a handful and they’re executed very well. It’s not a very “Rolex” practice to create limited editions today but Tudor has been active in this space making these watches highly sought-after by collectors.

  55. ramyadvictoria

    Malaika My style is 50 percent girl in link her late teens trying to get into a bar 25 percent eight-year-old boy in overalls 25 percent aspirational adult. Style-wise this is the watch for the adult in me.

  57. thadeawbonnie

    Believe it or not there is a method to the madness of this column link and the ordering of every week’s picks factors into it. Sometimes it’s fun to build up to something big and sign off for the week with a bang but other times the proverbial big kahuna is so good that you can’t help but spill the beans early. This week I thought I’d come right out of the gate with what’s undoubtedly one of the most impressive watches to be offered this year. And no it’s not a Rolex or a Patek.

  58. alysaxhadley

    All of a sudden everybody knows what a Crash is and slowly people are learning about other B-side hits from link the watchmaker of shapes. “The entire Cartier vintage history is so ripe for the plucking” watch dealer and Internet personality Mike Nouveau astutely pointed out. “There’s so much cool stuff to pick from their back catalog that they maybe made 10 of and that’s it.”

  63. Kennethdyeta

    ¡Saludos, exploradores de la fortuna !
    Casinos extranjeros con bonos sin depГіsito inicial – п»їhttps://casinoextranjerosdeespana.es/ casino online extranjero
    ¡Que experimentes maravillosas premios excepcionales !

  64. Waltersoaxy

    Hello keepers of pristine spaces !
    Best Air Purifier for Smoke Large Rooms – Top 10 List – п»їhttps://bestairpurifierforcigarettesmoke.guru/ air purifier for smoke smell
    May you experience remarkable magnificent freshness !

  67. DanielSlUrf

    ¡Saludos, buscadores de tesoros escondidos !
    Casino sin licencia EspaГ±a con privacidad total – п»їemausong.es mejores casinos sin licencia en espaГ±a
    ¡Que disfrutes de increíbles giros exitosos !

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top