MCQOPTIONS
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MCQOPTIONS
This section includes 1292 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 501. |
If you look into a mirror and find that the image (your reflection) is smaller than you, then the type of the mirror is: |
| A. | concave mirror |
| B. | convex mirror |
| C. | plano-concave mirror |
| D. | plane mirror |
| Answer» C. plano-concave mirror | |
| 502. |
If velocity is constant then acceleration is what? |
| A. | constant |
| B. | increasing |
| C. | 0 |
| D. | infinite |
| Answer» D. infinite | |
| 503. |
If two coulomb of charge flows through any cross-section of a conductor in one second, what will be the current flowing through it? |
| A. | 1 Ampere |
| B. | 1/2 Ampere |
| C. | 1/4 Ampere |
| D. | 2 Amperes |
| Answer» E. | |
| 504. |
If two charged bodies having equal potential are connected through a conducting wire, then:_x005F_x000D_ |
| A. | magnetic induction flows |
| B. | current flows from positive to negative |
| C. | current will not flow |
| D. | current will flow from neaative to positive |
| Answer» D. current will flow from neaative to positive | |
| 505. |
If the velocity of a body is halved its kinetic energy ________________. |
| A. | become 4 times |
| B. | becomes 1/4 th |
| C. | is also doubled |
| D. | becomes half |
| Answer» C. is also doubled | |
| 506. |
If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as lUV, lVIS and lIR respectively, then which of the following gives the correct relationship among these wavelengths? |
| A. | lUV < lIR < lVIS |
| B. | lUV > lVIS > lIR |
| C. | lUV > lIR > lVIS |
| D. | lUV < lVIS < lIR |
| Answer» E. | |
| 507. |
If the velocity of a body is doubled its kinetic energy ________________._x005F_x000D_ |
| A. | is also doubled |
| B. | becomes half_x005F_x000D_ |
| C. | becomes 1/4 th_x005F_x000D_ |
| D. | become 4 times_x005F_x000D_ |
| Answer» E. | |
| 508. |
If the velocity of a body becomes two times its initial velocity, its kinetic energy becomes n times its initial kinetic energy. What is the value of n? |
| A. | 4 |
| B. | 6 |
| C. | 44228 |
| D. | 3 |
| Answer» B. 6 | |
| 509. |
If the speed of an object moving along a straight line is constant, its motion is said to be _________. |
| A. | Uniform |
| B. | Periodic |
| C. | Circular |
| D. | Non-uniform |
| Answer» B. Periodic | |
| 510. |
If the speed of an object moving along a straight line keeps changing, its motion is said to be _________. |
| A. | Uniform |
| B. | Periodic |
| C. | Circular |
| D. | Non-uniform |
| Answer» E. | |
| 511. |
If the vector sum of torques acting on a system is zero, then the object is in _______. |
| A. | static equilibrium |
| B. | translatory equilibrium |
| C. | linear equilibrium |
| D. | rotational equilibrium |
| Answer» E. | |
| 512. |
If the resistance of a conductor is reduced to half its initial value, then the heating effect in the conductor will become ___. |
| A. | half |
| B. | double |
| C. | one-fourth |
| D. | four-times |
| Answer» B. double | |
| 513. |
If the resistance of a conductor is doubled, the current gets halved. This is because |
| A. | I = V - R |
| B. | I = V/R |
| C. | I = Rn/V |
| D. | I = VR |
| Answer» C. I = Rn/V | |
| 514. |
If the radius of the earth decreases and its mass remains the same, then the value of "acceleration due to gravity" will _____ . |
| A. | decrease |
| B. | increase |
| C. | remain the same |
| D. | become zero |
| Answer» C. remain the same | |
| 515. |
If the momentum of a body is tripled, its KE will |
| A. | become three times its original value |
| B. | remain the same |
| C. | become six times its original value |
| D. | become nine times its original value |
| Answer» E. | |
| 516. |
If the power of a corrective lens is +2.0 D, then it is a |
| A. | convex lens |
| B. | concave lens |
| C. | convex mirror |
| D. | concave mirror |
| Answer» B. concave lens | |
| 517. |
If the mass of an object is 60 kgs, what will be its weight on the moon? (N=Newton) |
| A. | 60N |
| B. | 600N |
| C. | 100N |
| D. | 10N |
| Answer» D. 10N | |
| 518. |
If the kinetic energy of a body becomes 256 times its initial value, then the new linear momentum will be |
| A. | 8 times the initial value |
| B. | 16 times the initial value |
| C. | the same as the initial value |
| D. | 32 times the initial value |
| Answer» C. the same as the initial value | |
| 519. |
If the frequency of a sound wave of given velocity is increased , how will it affect its wavelength? |
| A. | Its wavelength will increase |
| B. | The wavelength will not be affected |
| C. | Its wave length will decrease |
| D. | Wavelength will keep increasing and decreasing alternately |
| Answer» D. Wavelength will keep increasing and decreasing alternately | |
| 520. |
If the initial velocity of a car is 5 m/s, and the final velocity is 10 m/s in 5s, then the acceleration is ___. |
| A. | 10Â m/s2 |
| B. | 0.1Â m/s2 |
| C. | 1Â m/s2 |
| D. | 5Â m/s2 |
| Answer» D. 5Â m/s2 | |
| 521. |
If the initial velocity of an object thrown upwards is 14 m/s, then the time taken for the object to reach its highest point will be ___.(a = 9.8 m/s2) |
| A. | 1.5 s |
| B. | 1.43 s |
| C. | 1.34 s |
| D. | 1 s |
| Answer» C. 1.34 s | |
| 522. |
If the force applied on the object is in the direction opposite to the direction of motion, the speed of the object __________. |
| A. | increases |
| B. | stops |
| C. | decreases |
| D. | no effect |
| Answer» D. no effect | |
| 523. |
If the force applied on the object is in the direction of its motion, the speed of the object __________. |
| A. | increases |
| B. | stops |
| C. | decreases |
| D. | no effect |
| Answer» B. stops | |
| 524. |
If the distance travelled by an object is zero, then the displacement of the object |
| A. | is zero |
| B. | is negative |
| C. | is positive |
| D. | may or may not be zero |
| Answer» B. is negative | |
| 525. |
If the Distance-Time graph is a straight inclined line then it represents _______________. |
| A. | uniform speed |
| B. | non-uniform speed |
| C. | constant displacement_x005F_x000D_ |
| D. | non-uniform velocity |
| Answer» B. non-uniform speed | |
| 526. |
If the Distance-Time graph is a curve then it represents _______________._x005F_x000D_ |
| A. | uniform speed_x005F_x000D_ |
| B. | constant displacement_x005F_x000D_ |
| C. | uniform momentum_x005F_x000D_ |
| D. | non-uniform speed |
| Answer» C. uniform momentum_x005F_x000D_ | |
| 527. |
If the current flowing through a circuit is 0.6 A for 6 mins, the amount of electric charge flowing through it is ....... |
| A. | 360C |
| B. | 216 C |
| C. | 60 C |
| D. | 36 C |
| Answer» C. 60 C | |
| 528. |
If the angle of incidence formed on a concave mirror at a point is 30 deg then the angle of reflection will be |
| A. | 15 deg |
| B. | 30 deg |
| C. | 60 deg |
| D. | 90 deg |
| Answer» C. 60 deg | |
| 529. |
If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is half of that of earth and radius is same as that of earth is _________________._x005F_x000D_ |
| A. | g/2 |
| B. | 4g |
| C. | 2g_x005F_x000D_ |
| D. | g/4 |
| Answer» B. 4g | |
| 530. |
If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is same as that of earth and radius is twice as that of earth is _________________. |
| A. | g/4 |
| B. | g/2 |
| C. | 4g |
| D. | 2g |
| Answer» B. g/2 | |
| 531. |
If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is double that of earth and radius is same as that of earth is _________________. |
| A. | 2g |
| B. | g |
| C. | g/2 |
| D. | 4g |
| Answer» B. g | |
| 532. |
If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is same as that of earth and radius is half as that of earth is _________________._x005F_x000D_ |
| A. | 2g |
| B. | g/4 |
| C. | g/2 |
| D. | 4g |
| Answer» E. | |
| 533. |
If price of an article decreases from Rs 240 to Rs 220, when quantity demanded increases from 200 units to 210 units. Find point elasticity of demand? |
| A. | 0.6 |
| B. | -1.8 |
| C. | -0.6 |
| D. | 1.8 |
| Answer» D. 1.8 | |
| 534. |
If price of an article decreases from P1 to Rs 25, quantity demanded increases from 900 units to 1200 units. If point elasticity of demand is Â2 find P1? |
| A. | Rs. 20 |
| B. | Rs. 30 |
| C. | Rs. 25 |
| D. | Rs. 35 |
| Answer» C. Rs. 25 | |
| 535. |
If objects appear enlarged and inverted in a rear view mirror, then which type of mirror is used? |
| A. | Concave |
| B. | Convex |
| C. | Cylindrical |
| D. | Plane |
| Answer» B. Convex | |
| 536. |
If ice floating on water in a vessel melts, the water level in the vessel _______. |
| A. | increases |
| B. | does not change |
| C. | first increases before decreasing |
| D. | decreases |
| Answer» C. first increases before decreasing | |
| 537. |
If lift is going up with acceleration, the apparent weight of a body is |
| A. | may be more or less than true weight |
| B. | more than the true weight |
| C. | less than the true weight |
| D. | equal to the true weight |
| Answer» C. less than the true weight | |
| 538. |
If I is the current through a wire and e is the charge of an electron, then the number of electrons crossing in t seconds will be given by |
| A. | e/It |
| B. | It/e |
| C. | Ie/t |
| D. | Ite |
| Answer» C. Ie/t | |
| 539. |
If electric resistance is to be decreased, then the number of resistances should be connected in ________________ |
| A. | Series |
| B. | Parallel |
| C. | Mixed arrangement |
| D. | None of these |
| Answer» C. Mixed arrangement | |
| 540. |
If demand curve for alphonso mangoes is D = 25000 Â 70P and supply curve is S = 10000 + 80P, find the equilibrium quantity? |
| A. | 18,000 units |
| B. | 2,000 units |
| C. | 1,800 units |
| D. | 200 units |
| Answer» B. 2,000 units | |
| 541. |
If an object with a mass of 25 kg is moving with a uniform acceleration of 8 , then the force exerted by the body is ........_x005F_x000D_ |
| A. | 200 N |
| B. | 200 J |
| C. | 200Â ms-2 |
| D. | 200Â ms2 |
| Answer» B. 200 J | |
| 542. |
If an object moves with constant velocity, |
| A. | it must have constant speed |
| B. | it must have constant direction |
| C. | it must have constant speed in constant direction |
| D. | None of the above |
| Answer» D. None of the above | |
| 543. |
If an object moves in a purely rotatory motion, then each constituent particle of the body moves in a circle, the centre of which is located on a line is called _______. |
| A. | the axis of rotation |
| B. | the line of rotation |
| C. | the spinning rod |
| D. | the fixed line |
| Answer» B. the line of rotation | |
| 544. |
If an object moves in a circular path with uniform ________, its motion is called uniform circular motion. |
| A. | speed |
| B. | Time |
| C. | Velocity |
| D. | Acceleration |
| Answer» B. Time | |
| 545. |
If an object is thrown upwards, what will be its velocity, when it reaches its maximum height? |
| A. | 0 m/s |
| B. | 4.9 m/s |
| C. | 14.7 m/s |
| D. | 20 m/s |
| Answer» B. 4.9 m/s | |
| 546. |
If an object is placed at the center of curvature of a concave mirror, then the image formed will be |
| A. | virtual and enlarged |
| B. | virtual and diminished |
| C. | real and of the same size |
| D. | real and enlarged |
| Answer» D. real and enlarged | |
| 547. |
If an object is at infinity, what will be the position of an image formed due to convex lens?_x005F_x000D_ |
| A. | At infinity |
| B. | At focal point |
| C. | Beyond F2 |
| D. | On C2 |
| Answer» C. Beyond F2 | |
| 548. |
If an empty cylinder is half filled with a liquid, its center of gravity is |
| A. | shifted upwards |
| B. | shifted downwards |
| C. | shifed neither upward nor downward |
| D. | shifted upward or downward depending on the density of the liquid |
| Answer» C. shifed neither upward nor downward | |
| 549. |
If an electron and a photon have the same wavelength, then they will have the same |
| A. | velocity |
| B. | linear momentum |
| C. | angular momentum |
| D. | energy |
| Answer» C. angular momentum | |
| 550. |
If a sound travels from air to water, the quantity that remain unchanged is |
| A. | velocity |
| B. | frequency |
| C. | wavelength |
| D. | amplitude |
| Answer» C. wavelength | |