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MCQOPTIONS
This section includes 200950 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 12701. |
The critical angle for diamond (n = 2.42) submerged in water (n = 1.33) is? |
| A. | 17° |
| B. | 24° |
| C. | 49° |
| D. | 33° |
| Answer» E. | |
| 12702. |
A day is added when one crosses |
| A. | the equator from north to south |
| B. | 180 degree longitude from west to east |
| C. | 180 degree longitude from east to west |
| D. | the equator fro south to north |
| Answer» C. 180 degree longitude from east to west | |
| 12703. |
The proper name for farsightedness is? |
| A. | hyperopia |
| B. | presbyopia |
| C. | astigmatism |
| D. | myopia |
| Answer» B. presbyopia | |
| 12704. |
Sources that produce waves with a constant phase relation are said to be? |
| A. | coherent |
| B. | refracted |
| C. | diffused |
| D. | polarized |
| Answer» B. refracted | |
| 12705. |
Who were the painters brought by the Humayun from Iran ? |
| A. | b and c |
| B. | Abdul Samad |
| C. | Mir Sayyed Ali |
| D. | Abdul Latif |
| Answer» B. Abdul Samad | |
| 12706. |
The focal length of a converging lens is 15 cm. An object is placed 45 cm away from the lens. The image will be? |
| A. | smaller and virtual |
| B. | larger and real |
| C. | the same size and real |
| D. | smaller and real |
| Answer» E. | |
| 12707. |
The diffraction pattern produced by a double slit will show greatest separation of maxima when the color of the light source is? |
| A. | Green |
| B. | Blue |
| C. | Orange |
| D. | Red |
| Answer» E. | |
| 12708. |
Humayun occupied the fort of Raisin in |
| A. | 1536 |
| B. | 1532 |
| C. | 1530 |
| D. | 1540 |
| Answer» C. 1530 | |
| 12709. |
Who constructed Dinpanah at Delhi? |
| A. | Aurangjeb |
| B. | Humayun |
| C. | Babar |
| D. | Akbar |
| Answer» C. Babar | |
| 12710. |
What was the period of rule of Humayun for the first term? |
| A. | 1545-1555 |
| B. | 1550-1560 |
| C. | 1535-1545 |
| D. | 1530-1540 |
| Answer» E. | |
| 12711. |
Which two characteristics of light can best be explained by the wave theory of light? |
| A. | interference and diffraction |
| B. | refraction and diffraction |
| C. | reflection and interference |
| D. | relection and refraction |
| Answer» B. refraction and diffraction | |
| 12712. |
If the distance between the slits is decreased, the distance between the central max. and the first max. will? |
| A. | decrease |
| B. | increase |
| C. | remain the same |
| D. | None of these |
| Answer» C. remain the same | |
| 12713. |
Who gave shelter to Humayun when he fled to Iran? |
| A. | Shah Tahmsaps |
| B. | Ghori |
| C. | Kazir Khan |
| D. | Quadir Khan |
| Answer» B. Ghori | |
| 12714. |
If all parts of a light beam have a constant phase relationship, with the same wavelength and frequency, the light beam is? |
| A. | poly and incoherent |
| B. | polychromatic and coherent |
| C. | mono and incoherent |
| D. | monochromatic and coherent |
| Answer» E. | |
| 12715. |
Which phenomenon can be observed for transverse waves only? |
| A. | reflection |
| B. | polarization |
| C. | diffraction |
| D. | refraction |
| Answer» C. diffraction | |
| 12716. |
Author of 'Humayun-nama' |
| A. | Ferishta |
| B. | Humayun |
| C. | Gulbadan Begum |
| D. | Abul Fazal |
| Answer» D. Abul Fazal | |
| 12717. |
A wave is diffracted as it passes through an opening in a barrier. The amount of diffraction that the wave undergoes depends on both the? |
| A. | amplitude and frequency of the incident wave |
| B. | wavelength of the incident wave and size of the opening |
| C. | wavelength and speed of the incident wave |
| D. | amplitude of the incident wave and the size of the opening |
| Answer» C. wavelength and speed of the incident wave | |
| 12718. |
If the wavelength of the light is decreased, the width of the central maximum in the diffraction pattern will? |
| A. | decrease |
| B. | increase |
| C. | remain the same |
| D. | None of these |
| Answer» B. increase | |
| 12719. |
If the screen is moved closer to the slits, the distance between the central maximum and the first maximum will? |
| A. | decrease |
| B. | increase |
| C. | remain the same |
| D. | None of these |
| Answer» B. increase | |
| 12720. |
If positively charged particles enter with high velocity from the sky towards the earth, then the earths magnetic field will deflect them towards? |
| A. | East |
| B. | South |
| C. | North |
| D. | West |
| Answer» B. South | |
| 12721. |
Only the wave theory of light offers an explanation for the ability of light to exhibit? |
| A. | intensity of radiation |
| B. | photoelectric emission |
| C. | reflection |
| D. | interference |
| Answer» E. | |
| 12722. |
In what way a voltage can be induced in a wire? |
| A. | By placing the wire in a changing magnetic field |
| B. | By placing the wire in a change electric field |
| C. | By heavy one end of the wire |
| D. | All of these |
| Answer» C. By heavy one end of the wire | |
| 12723. |
The order of the layers of atmosphere, upwards from below |
| A. | stratosphere, troposphere, ionosphere and exosphere |
| B. | exosphere, ionosphere, troposphere and stratosphere |
| C. | troposphere, stratosphere, ionosphere and exosphere |
| D. | stratosphere, ionosphere, troposphere and exosphere |
| Answer» D. stratosphere, ionosphere, troposphere and exosphere | |
| 12724. |
Which one of the following is considered to be the best method for making a magnet ? |
| A. | Double touch |
| B. | Single touch |
| C. | Induction |
| D. | Electrolytic |
| Answer» E. | |
| 12725. |
Transformers are used in circuits containing? |
| A. | D.C alone |
| B. | both A.C and D.C |
| C. | A.C alone |
| D. | both A.C and D.C |
| Answer» D. both A.C and D.C | |
| 12726. |
The thickness of the troposphere increases in |
| A. | never changes |
| B. | summer |
| C. | winter |
| D. | spring |
| Answer» C. winter | |
| 12727. |
The motional e.m.f. induced in a coil is independent of? |
| A. | Number of Turns |
| B. | Change of flux |
| C. | Time |
| D. | Resistance |
| Answer» E. | |
| 12728. |
The fall in temperature with increasing elevation is called |
| A. | thermal fall |
| B. | thermal anomaly |
| C. | thermal reduction |
| D. | lapse rate |
| Answer» E. | |
| 12729. |
Which of the following is a magnetic material? |
| A. | Iron |
| B. | Nickel |
| C. | Cobalt |
| D. | All of these |
| Answer» E. | |
| 12730. |
Substances which are repelled by a magnet , are known as? |
| A. | Paramagnetic Substances |
| B. | Diamagnetic Substances |
| C. | Ferromagnetic Substances |
| D. | None of the above |
| Answer» C. Ferromagnetic Substances | |
| 12731. |
The velocity of wind is governed by |
| A. | temperature |
| B. | Farrel's law |
| C. | pressure gradient |
| D. | rotation of the earth |
| Answer» D. rotation of the earth | |
| 12732. |
The cause of change of seasons on the earth is |
| A. | rotation of the earth |
| B. | revolution and inclination of the earth |
| C. | rotation of the sun |
| D. | rotation of the moon |
| Answer» C. rotation of the sun | |
| 12733. |
The reason for the fact that stratosphere is ideal for flying jet air craft is |
| A. | that the absence of clouds and other weather phenonema |
| B. | that this layer is rich in ozone which reduces fuel consumption |
| C. | that the temperature is constant and ideal for aircraft engine efficiency |
| D. | that this layer is out of the firing range of anti aircraft guns |
| Answer» B. that this layer is rich in ozone which reduces fuel consumption | |
| 12734. |
A steel bar can be magnetized by which one of the following methods? |
| A. | Divided touch method |
| B. | Electric current method |
| C. | Single touch method or Double touch method |
| D. | All of these |
| Answer» E. | |
| 12735. |
The attractive power of a bar magnet is maximum at? |
| A. | Middle |
| B. | Ends |
| C. | Through out the magnet |
| D. | None of these |
| Answer» C. Through out the magnet | |
| 12736. |
Identify the sedimentary rocks (1) Basalt (2) Limestone (3) Shale (4) Granite (5) Quartzite |
| A. | 3 and 4 |
| B. | 1 and 2 |
| C. | 2 and 3 |
| D. | 2 and 5 |
| Answer» D. 2 and 5 | |
| 12737. |
Which of the following is scalar? |
| A. | Magnetic flux |
| B. | Magnetic flux density |
| C. | e.m.f. |
| D. | both (a) and (c) |
| Answer» E. | |
| 12738. |
How much pressure exerted by the atmosphere at the sea level? |
| A. | one kg per square cm |
| B. | two kg per square cm |
| C. | one pound per square cm |
| D. | five kg per square cm |
| Answer» B. two kg per square cm | |
| 12739. |
When an iron piece is magnetized its length? |
| A. | Decreases considerably |
| B. | Decreases slightly |
| C. | Increases considerably |
| D. | Increases slightly |
| Answer» E. | |
| 12740. |
What will happen if the temperature of water is lowered from 8 degree to 3 degree Celsius |
| A. | the volume will first decrease then increase |
| B. | water will freeze |
| C. | water will not change in volume |
| D. | the volume will first increase then decrease |
| Answer» B. water will freeze | |
| 12741. |
A mariner's compass is used ? |
| A. | For determination of direction |
| B. | For determination of dip at a place |
| C. | To compare magnetic moments |
| D. | For determination of H |
| Answer» B. For determination of dip at a place | |
| 12742. |
The line joining the two poles of a magnet is known as? |
| A. | Magnetic Moment |
| B. | Effective length |
| C. | Magnetic Meridian |
| D. | Magnetic axis |
| Answer» E. | |
| 12743. |
A mariner's compass is used? |
| A. | For determination of H |
| B. | For determination of direction |
| C. | To compare magnetic moments |
| D. | For determination of dip at a place |
| Answer» C. To compare magnetic moments | |
| 12744. |
Farrel's law describes |
| A. | velocity of wind |
| B. | temperature of wind |
| C. | direction of wind |
| D. | none of these |
| Answer» D. none of these | |
| 12745. |
In Delhi Sutanate which dynasty ruled for more period |
| A. | Tughluq |
| B. | Khilji |
| C. | Sayyad |
| D. | Lodi |
| Answer» B. Khilji | |
| 12746. |
The importance of ozone in the atmosphere is |
| A. | that it provides condensation nuclei |
| B. | that it provides protection against ultraviolet radiation |
| C. | that it helps in scattering blue light |
| D. | that it creates greenhouse effect on earth |
| Answer» C. that it helps in scattering blue light | |
| 12747. |
All magnetic substances loose their magnetism when? |
| A. | Placed in water |
| B. | Heated |
| C. | Brought near a magnetic field |
| D. | In Winter |
| Answer» C. Brought near a magnetic field | |
| 12748. |
A neutral point is found where? |
| A. | Two magnetic fields have equal magnitudes and the same direction |
| B. | A magnetic field is at right angle to the earths magnetic field |
| C. | A magnetic field has circular lines of force |
| D. | Two magnetic fields have equal magnitudes and opposite directs |
| Answer» E. | |
| 12749. |
If a magnet is broken into two equal pieces the pole strength of each half will be? |
| A. | 1/4 |
| B. | 1/2 |
| C. | Double |
| D. | Same |
| Answer» E. | |
| 12750. |
Permanent magnet attracts? |
| A. | Same substances and repels others |
| B. | All paramagnetic substances and repels all others |
| C. | Only ferromagnetic substances |
| D. | Ferromagnetic substances and repels all others |
| Answer» B. All paramagnetic substances and repels all others | |