MCQOPTIONS
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MCQOPTIONS
This section includes 2016 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 701. |
If the acceleration due to gravity on the surface of the 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 the earth is __________. |
| A. | \(2g\) |
| B. | \(\frac{g}{4}\) |
| C. | \(\frac{g}{2}\) |
| D. | \(4g\) |
| Answer» E. | |
| 702. |
An electric bulb has a filament made of ________. |
| A. | Lead |
| B. | Copper |
| C. | Iron |
| D. | Tungsten |
| Answer» E. | |
| 703. |
In a Fleming’s right-hand rule, the thumb indicates the: |
| A. | Direction of current flow |
| B. | Direction of induced voltage |
| C. | Direction of motion of conductor |
| D. | Direction of magnetic field |
| Answer» D. Direction of magnetic field | |
| 704. |
A 100 gram ball is kept on the top of a building of 70 m height. Find the potential energy of the ball (assume g = 10 m/s2) |
| A. | 70 J |
| B. | 80 J |
| C. | 50 J |
| D. | 60 J |
| Answer» B. 80 J | |
| 705. |
In which year was the metric system of weights and measures adopted by the Indian Parliament? |
| A. | 1962 |
| B. | 1966 |
| C. | 1967 |
| D. | 1956 |
| Answer» E. | |
| 706. |
If gravitational constant is decreasing with time, what will remain unchanged in case of a satellite orbiting around the earth ? |
| A. | Time period |
| B. | Orbiting radius |
| C. | Areal velocity |
| D. | Angular velocity |
| Answer» B. Orbiting radius | |
| 707. |
Match the charge with type of nuclear radiation. Type of nuclear radiation Charge A. Alpha1. Neutral B.Beta2.Negative C.Gamma3.Positive |
| A. | A-2, B-3, C-1 |
| B. | A-1, B-3, C-2 |
| C. | A-3, B-2, C-1 |
| D. | A-3, B-1, C-2 |
| Answer» D. A-3, B-1, C-2 | |
| 708. |
At which of the following places is the gravitational acceleration zero? |
| A. | At sea level |
| B. | At the poles |
| C. | At the equator |
| D. | At the center of the earth |
| Answer» E. | |
| 709. |
Humidity of air is measured by________. |
| A. | Hygrometer |
| B. | Nanometer |
| C. | Glucometer |
| D. | Barometer |
| Answer» B. Nanometer | |
| 710. |
Consider the following pairs:Object: Mass (Kg)1] Uranium atom: 10-10 Kg2] Mosquito: 10-5 Kg3] Boeing 747 aircraft: 108 Kg4] Milky Way Galaxy: 1010 KgWhich of the above pairs are correctly matched? |
| A. | 1 and 3 only |
| B. | 3 and 4 only |
| C. | 2 and 3 only |
| D. | 2 , 3 and 4 only |
| Answer» D. 2 , 3 and 4 only | |
| 711. |
If a bulb of 50 W consumes the energy of 1000 J, then in how much time the bulb will glow? |
| A. | 20 s |
| B. | 1 s |
| C. | 100 s |
| D. | 10 s |
| Answer» B. 1 s | |
| 712. |
An electron and a proton starting from rest are accelerated through a potential difference of 1000 V. Which one of the following statements in this regard is correct? |
| A. | The kinetic energy of both the particles will be different. |
| B. | The speed of the electron will behigher than that of the proton. |
| C. | The speed of the proton will be higher than that of the electron. |
| D. | The speed of the electron and theproton will be equal. |
| Answer» C. The speed of the proton will be higher than that of the electron. | |
| 713. |
If two unequal masses possess the same kinetic energy, then the heavier mass has: |
| A. | equal momentum |
| B. | lesser momentum |
| C. | greater momentum |
| D. | Can't say |
| Answer» D. Can't say | |
| 714. |
An image formed by a plane mirror is always |
| A. | Illusionary image |
| B. | Virtual image |
| C. | Real image |
| D. | Reflection image |
| Answer» C. Real image | |
| 715. |
A 5 Ω resistance wire is doubled on it. Calculate the new resistance of the wire. |
| A. | 1.25 Ω |
| B. | 2.25 Ω |
| C. | 1.5 Ω |
| D. | 1.00 Ω |
| Answer» B. 2.25 Ω | |
| 716. |
Energy possessed by a body due to its motion is known by what name? |
| A. | Kinesthetic energy |
| B. | Final energy |
| C. | Kinetic energy |
| D. | Potential energy |
| Answer» D. Potential energy | |
| 717. |
Identify the incorrect statement.According to Ohm's law: |
| A. | I/R = Constant |
| B. | V is directly proportional to I. |
| C. | V/I = Constant |
| D. | V = IR |
| Answer» B. V is directly proportional to I. | |
| 718. |
Human ear cannot detect sound frequency of______. |
| A. | 2000 Hz |
| B. | 500 Hz |
| C. | 200 Hz |
| D. | less than 20 Hz |
| Answer» E. | |
| 719. |
Deflection of wind direction is caused by- |
| A. | Gravitational force |
| B. | Centrifugal force |
| C. | Rotation |
| D. | Temperature |
| Answer» C. Rotation | |
| 720. |
An object is thrown vertically upward and it reaches a maximum height 'h' from the ground During its flight, on reaching \(\frac{3}{4}\) of height 'h', the object will acquire: |
| A. | Less P.E and more K.E |
| B. | same P.E and K.E |
| C. | more P.E and less K.E. |
| D. | only K.E |
| Answer» D. only K.E | |
| 721. |
A transformer is a device for |
| A. | Converting AC into DC |
| B. | Generating electricity |
| C. | Stepping up or down ac voltage |
| D. | Stepping down or up dc voltage |
| Answer» D. Stepping down or up dc voltage | |
| 722. |
Find the acceleration (in m/s2) of a body which accelerates from 25 m/s to 30 m/s in 10 seconds. |
| A. | 5.5 |
| B. | 1 |
| C. | 11 |
| D. | 0.5 |
| Answer» E. | |
| 723. |
“A very weak form of magnetism that is non-permanent, persist only when an external field is applied and having a negative value of magnetic susceptibility” is known as: |
| A. | dielectric strength |
| B. | diamagnetism |
| C. | ferromagnetism |
| D. | ferrimagnetism |
| Answer» C. ferromagnetism | |
| 724. |
A nucleus with atomic number Z and mass number A emits an alpha particle. The atomic number and mass number, respectively, of the daughter nucleus, are: |
| A. | Z, A - 4 |
| B. | Z + 2, A + 2 |
| C. | Z - 2, A - 4 |
| D. | Z - 2, A - 2 |
| Answer» D. Z - 2, A - 2 | |
| 725. |
Manjula is observing her image in a plane mirror. The distance between herself and the mirror is 5 m. She moves 1 m towards the mirror. The distance between herself and her image now is |
| A. | 1 m |
| B. | 4 m |
| C. | 8 m |
| D. | 10 m |
| Answer» D. 10 m | |
| 726. |
During uniform motion of an object along a straight line, its _________ remains constant with time. |
| A. | acceleration |
| B. | deceleration |
| C. | force |
| D. | velocity |
| Answer» E. | |
| 727. |
Identify the unit of measuring the intensity of sound. |
| A. | Ampere |
| B. | Decibels |
| C. | Candela |
| D. | Knots |
| Answer» C. Candela | |
| 728. |
An object 4 cm in size, is placed at 20 cm in front of a concave mirror of focal length 10 cm. At what distance from the mirror should a screen be placed in order to obtain a sharp image? |
| A. | 20 cm from the mirror |
| B. | 10 cm from the mirror |
| C. | \(\dfrac{20}{3}\) cm from the mirror |
| D. | \(\dfrac{10}{3}\) cm from the mirror |
| Answer» B. 10 cm from the mirror | |
| 729. |
If the radius of curvature of a concave mirror is 6.2 cm, its focal length is ______ cm. |
| A. | 3.1 |
| B. | 6 |
| C. | 2.6 |
| D. | 12.4 |
| Answer» B. 6 | |
| 730. |
Far sightedness is also known as: |
| A. | Presbyopia |
| B. | Myopia |
| C. | Hypermetropia |
| D. | None of the above |
| Answer» D. None of the above | |
| 731. |
A force of 10N is acting on an object. The object is displaced through 5 m in the direction of force. Then the work done is: |
| A. | -50 J |
| B. | 50 Watt |
| C. | -50 N |
| D. | 50 Nm |
| Answer» E. | |
| 732. |
A sound of single frequency is called as ________. |
| A. | Note |
| B. | Pitch |
| C. | Tone |
| D. | Hertz |
| Answer» D. Hertz | |
| 733. |
An object of mass 40 kg moving along a straight line with a horizontal velocity of 15 ms-1 collides and sticks to a stationary wooden block of mass 10 kg. If the surface is smooth, the combined object (object and the wooden block) after collision moves along the same straight line with a velocity of: |
| A. | 9 ms-1 |
| B. | 10 ms-1 |
| C. | 12 ms-1 |
| D. | 12.5 ms-1 |
| Answer» D. 12.5 ms-1 | |
| 734. |
Atomic mass of an element of an element is equal to the sum of number of |
| A. | electrons and protons only |
| B. | protons and neutrons only |
| C. | electrons and neutrons only |
| D. | electrons, protons and neutrons |
| Answer» C. electrons and neutrons only | |
| 735. |
'Anemometer' is an instrument used for measuring the |
| A. | wind speed |
| B. | light speed |
| C. | sound speed |
| D. | temperature |
| Answer» B. light speed | |
| 736. |
In conduction, the particles of the medium_________. |
| A. | only vibrate about their mean position |
| B. | are perfectly at rest |
| C. | vibrate as well as displace |
| D. | displace from one end to another end |
| Answer» B. are perfectly at rest | |
| 737. |
41H1 → 4He2 + _________ + energy. Find the missing element/s. |
| A. | 2 neutrons |
| B. | 2 electrons |
| C. | 2 protons |
| D. | 2 positrons |
| Answer» C. 2 protons | |
| 738. |
An object moves in a straight line when the machine provides continuous power. The distance traveled by the object in time 't' will be proportional to _______. |
| A. | t3/4 |
| B. | t1/2 |
| C. | t3/2 |
| D. | t1/4 |
| Answer» D. t1/4 | |
| 739. |
Luster doesn’t depend on |
| A. | Refractive index of mineral |
| B. | Absorption of mineral |
| C. | Transmittance of mineral |
| D. | Nature of reflecting surface |
| Answer» D. Nature of reflecting surface | |
| 740. |
Propagation of sound can be visualised as propagation of ________ variations in the medium. |
| A. | Energy |
| B. | Power |
| C. | Force |
| D. | Pressure |
| Answer» E. | |
| 741. |
EEG is used to measure the functioning of: |
| A. | Heart |
| B. | Brain |
| C. | Skeletal muscle |
| D. | All of these |
| Answer» C. Skeletal muscle | |
| 742. |
A bullet, of mass 40 g is horizontally fired with a velocity 150 ms-1 from a pistol of mass 3 kg. What is the recoil velocity of the pistol? |
| A. | - 1.25 ms-1 |
| B. | - 3.0 ms-1 |
| C. | - 1.5 ms-1 |
| D. | - 2.0 ms-1 |
| Answer» E. | |
| 743. |
Oil and water do not mix because of the property of |
| A. | bulk modulus |
| B. | shear strain |
| C. | volume effect |
| D. | surface tension |
| Answer» E. | |
| 744. |
In planetary motion- |
| A. | The total angular momentum remains constant |
| B. | The total linear momentum remains constant |
| C. | The total linear momentum is zero |
| D. | The total angular momentum is zero |
| Answer» B. The total linear momentum remains constant | |
| 745. |
A compressed spring possesses more energy than spring of normal length because the compressed spring has: |
| A. | Potential energy |
| B. | Heat energy |
| C. | Chemical energy |
| D. | Kinetic energy |
| Answer» B. Heat energy | |
| 746. |
1 pascal equals 1 _________. |
| A. | N m2 |
| B. | N m-2 |
| C. | N m |
| D. | N m-1 |
| Answer» C. N m | |
| 747. |
Match the followingA. Power1. JoulesB. Pressure2. NewtonC. Force 3. WattD. Kinematic Energy 4. Pascal |
| A. | A – 3, B – 4, C – 1, D - 2 |
| B. | A – 3, B – 4, C – 2, D - 1 |
| C. | A – 2, B – 3, C – 4, D - 1 |
| D. | A – 2, B – 3, C – 1, D -4 |
| Answer» C. A – 2, B – 3, C – 4, D - 1 | |
| 748. |
Half life of a radionuclide = natural log of ___________ / disintegration constant λ. |
| A. | 2 |
| B. | 1 |
| C. | 1/2 |
| D. | 10 |
| Answer» B. 1 | |
| 749. |
An electric bulb of 100 W is used for 9 hours per day. What will be the ‘units’ of energy consumed in 1 day by the bulb? |
| A. | 0.9 units |
| B. | 0.6 units |
| C. | 1.2 units |
| D. | 1.9 units |
| Answer» B. 0.6 units | |
| 750. |
A body of mass 18 kg is moving with a velocity of 6 m/s find its momentum. |
| A. | 108 |
| B. | 4.5 |
| C. | 54 |
| D. | 9 |
| Answer» B. 4.5 | |