Physics MCQs with Answers

C. Blue

D. Black

{
“@context”: “http://schema.org”,
“@type”: “Question”,
“name”: “A black body emitting all the radiation in the visible region appears________.”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “White”
}
}

B. At rest

C. In accelerated form

D. Moving with speed of sound

{
“@context”: “http://schema.org”,
“@type”: “Question”,
“name”: “A photon is always considered to be: ________?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Moving with speed of light”
}
}

B. Meson

C. Neutron

D. Positron

{
“@context”: “http://schema.org”,
“@type”: “Question”,
“name”: “The antiparticle of electron is: ______?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Positron”
}
}

B. 60 km/s

C. 45 km/s

D. 30 km/s 

Earth’s average orbital speed around the Sun is approximately 30 kilometers per second (km/s).

{
“@context”: “http://schema.org”,
“@type”: “Question”,
“name”: “Earth’s orbital speed is __________?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “30 km/s ”
}
}

C. Solid State Detector

D. None of the above

{
“@context”: “http://schema.org”,
“@type”: “Question”,
“name”: “Which instrument is used to detect path of visible rays?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Wilson Cloud Detector”
}
}

B. Orbital motion

C. Rectilinear motion

D. Translatory motion

{
“@context”: “http://schema.org”,
“@type”: “Question”,
“name”: “If the axis of rotation passes through the body and the body moves around itself then the motion is called:”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Spin motion”
}
}

B. r=vw

C. s=r

D. ∆s/∆t

{
“@context”: “http://schema.org”,
“@type”: “Question”,
“name”: “Relation between linear velocity and angular velocity:”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “v=rw”
}
}

C. be halved

D. remain unchanged

{
“@context”: “http://schema.org”,
“@type”: “Question”,
“name”: “A potential difference is applied across the ends of a wire. If the potential difference is doubled, then the drift velocity of free electron will.”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “be doubled”
}
}

B. Is halved

C. Is doubled

)D. remains same

{
“@context”: “http://schema.org”,
“@type”: “Question”,
“name”: “A wire of uniform area of cross -section A length L and resistance R is cut into two parts. The resistivity of each part:”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “remains same”
}
}