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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1651. |
A square metal plate , each side 100 cmlong at o'c was a circular of hole ofin the middle of it. AtWhat temperature will be the sides be 101 cmlong and what will then the diameter ofhole? [cofficient of lineal expansion of metal 12.5x 10 -6°C] |
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| 1652. |
A metallic piece displace water of volume of piece is. a.15cm3. b.15m3. c.35cm3. d.non of above |
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Answer» Answer: 35cm 3 |
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| 1653. |
a block of wood of density 0.8 g/cm 3 has a volume of 50 cm3 the mass of block will be. a.60.8g b. 75 g c. 48g d.40g |
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| 1654. |
A piece of paper of dimensions 1.5 m X 30 cm has area: a)0.25 m/s. b)0.3 m/s c)0.45 d)45m/s |
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Answer» Answer: 45m/s Explanation: AREA of rectangular=length ×breath |
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| 1655. |
B. what is the importantance of double circulation? |
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Answer» Explanation: DOUBLE circulation supports a strict separation of both oxygenated and deoxygenated blood. Therefore, this circulation ENSURES that the body always has a dedicated SUPPLY of oxygen and also, it improves body EFFICIENCY. |
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| 1657. |
What are the most common units of volume |
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Answer» Answer:
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| 1658. |
The light rays coming from infinity after reflection in a diverging mirror meet at1 pointa. principal focusb. principal axisc. centre of curvatured. pole of the mirror |
Answer» (b) ,an object AB is placed on the principal AXIS of a concave mirror and ... The two reflected RAYS meet at point A . The LINE A B drawn perpendicular to ... ( IV) Between the CENTRE of curvature and the focus. |
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| 1659. |
Write any four uses of washing soda and baking soda |
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Answer» Explanation: |
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| 1660. |
Do plants use ground water ? How? |
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Answer» Water seeps into the ground much like a glass of water poured onto a pile of SAND. As water seeps into the ground, some of it clings to particles of soil or to roots of plants just below the LAND surface. This moisture provides plants with the water they need to GROW. |
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| 1661. |
Which medicine derived from poppy plant |
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Answer» Opium, narcotic drug that is OBTAINED from the unripe seedpods of the opium POPPY (Papaver somniferum), a plant of the family Papaveraceae. (See poppy.) Opium is obtained by slightly incising the seed CAPSULES of the poppy after the plant's flower petals have fallen. Hope it helps UH... MARK it as brainliest |
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| 1662. |
What is Circulatory motion ? |
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Answer» circular MOTION is a movement of an object along the CIRCUMFERENCE of a circle or ROTATION along a circular PATH. It can be uniform, with constant angular rate of rotation and constant SPEED, or non-uniform with a changing rate of rotation. |
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| 1663. |
what is photosynthesisonly armies others stay away |
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Answer» Photosynthesis is the process by which PLANTS, some bacteria, and some protistans use the ENERGY from sunlight to produce sugar, which cellular respiration converts into ATP, the "fuel" used by all living things. hope it HELPS yah |
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| 1664. |
(1) Use your knowledge of electrostatics to complete these sentences. Use these words.attracted , charged, negative ,opposite,positive ,repelled,the sameThe duster is The dust has charge so it is to the duster |
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Answer» Answer: hii I am MERA roy so sorry but I dont HELP you PAR pl mark kar do YA fir follow kar do pl pl |
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| 1665. |
Choose the correct option among then following:2 pointsa. If an inverted object is placed in front of a concave mirror, it can form real and erect image.b. Solar furnaces use convex mirrorc. Concave mirror cannot form parallel beam of light as it is converging mirror.d. Images formed by convex mirror will be of the less intensity. |
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Answer» a. If an inverted OBJECT is placed in front of a concave mirror, it can form real and erect image. b. SOLAR furnaces use convex mirror c. Concave mirror cannot form parallel beam of LIGHT as it is CONVERGING mirror. d. Images formed by convex mirror will be of the less intensity. (d) is your write answer Mark As BrainliestLeave A Thanks ❤❤ |
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| 1666. |
Identify objects in motion and at rest |
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Answer» Rest and motion are RELATIVE terms. In SIMPLE terms, an OBJECT that changes its position is said to be in motion while the opposite ACTION causes an object to be at rest. Explanation: May you help it |
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| 1667. |
Why rings put on ring finger???? |
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Answer» Answer: In MANY Western countries, the tradition of WEARING an engagement ring on the fourth finger on the left hand, (the left ring finger on the ring finger guide below), can be traced back to the ANCIENT ROMANS. They believed this finger had a vein that ran directly to the heart, the Vena Amoris, meaning 'vein of LOVE'. |
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| 1668. |
Which plant is used to make pain balms like vicks ? |
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Answer» Answer: Eucalyptus oil may soothe ACHES and painAnother ingredient of Vick's VapoRub — eucalyptus oil — contains a natural chemical called 1,8-cineole. This compound GIVES it ANTIBACTERIAL and antiviral properties. It ALSO has anti-inflammatory properties ❥ llMissDrasticll |
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| 1669. |
A car is traveling at a speed of 25m/s. How long will it take for the car to cover250 m.A. 12 s B. 20 s C. 10 s D. 5 s |
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Answer» Explanation: 10 seconds plz MARK me BRAINLIEST |
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| 1670. |
Write the situations,where we apply different types of forces? |
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Answer» Applied force : - Applied Force OCCURS when a person or object directly applies force to another object, causing it to move. Contact Force :- When you PUSH a COMPUTER mouse that is sitting on a flat SURFACE, this is an example of contact force between your HAND and the mouse. Thanks Answer Please |
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| 1671. |
Name any four medicinal get it from the forest. |
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Answer» Medicinal Plants from the Forest
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| 1672. |
Measuring the density of liquid with unknown mass and volume form of flowchart . |
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Answer» jajwhwbbshshshhshshshhsjs Explanation: jsjshwbbwbwhwhwyhsbdhsb |
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| 1673. |
A ray of light is incident on a concave mirror at the pole of the mirror making an angle 25 degrees with the principal axis of the mirror. What is the angle of reflection. |
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Answer» Answer: Why it is called an INCIDENT |
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| 1674. |
The car?9. State which of the following situations are possible and givean example for each of these:(a) an object with a constant acceleration but with zero velocity(b) an object moving with an acceleration but with uniformspeed.(c) an object moving in a certain direction with anacceleration in the perpendicular direction. |
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Answer» Answer: The WORD acceleration implies a change in the object's velocity. One example of this is vertical particle projection. When an object is thrown upwards, the maximum height velocity of the body is zero, but the constant acceleration DUE to gravity is still working. (B) The GIVEN statement is POSSIBLE. |
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| 1675. |
3. Have you seen athletes run on a 100 metre track and on a 400 metre trackduring the Olympics or during your school's sports day? what type of motion arethe athletes in? Define it. Give one more example of same kind of motion.Answer fast pls |
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Answer» Answer: Sprinting is running over a short distance at the top-most speed of the body in a LIMITED PERIOD of time. It is used in MANY sports that incorporate running, typically as a way of quickly reaching a target or goal, or avoiding or CATCHING an opponent. Human physiology dictates that a runner's near-top speed cannot be maintained for more than 30–35 SECONDS due to the depletion of phosphocreatine stores in muscles, and perhaps secondarily to excessive metabolic acidosis as a result of anaerobic glycolysis.[1] |
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| 1676. |
What is science hiiiiiiiiiiiiii |
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Answer» Answer: Science is the study of the nature and BEHAVIOUR of natural things and the knowledge that we OBTAIN about them. The best discoveries in science are very simple. ... A science is a PARTICULAR BRANCH of science such as physics, chemistry, or BIOLOGY. |
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| 1677. |
Ang pataba ay ikinakalat sa iba aw ng lupa. Kadalasang ginagawa ito sa mga palayan?A. Basal appliB. Side dressing method C. Broadcasting method D. Foliar applicationPls help me and answer this question I need answer rn pls huhuhu |
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| 1678. |
What can be said about the motion of the vehicle,if a plumb line hanging from its roof drops vertically? |
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Answer» Answer: here is your answer Explanation: Either the VEHICLE is at REST or it is MOVING with constant velocity. Hope it HELPS |
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| 1679. |
Define Law of Inertia. |
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Answer» Answer: Law of inertia, also called Newton's FIRST law, postulate in physics that, if a BODY is at rest or moving at a constant speed in a straight line, it will REMAIN at rest or keep moving in a straight line at constant speed unless it is ACTED upon by a FORCE |
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| 1680. |
Write biography of some renowned physicst . |
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Answer» Alhazen C. 965 – c. ... Luis Alvarez 1911 – 1988. The iridium LAYER, dinosaur death by meteorite impact, and subatomic particle discoveries. André-Marie Ampère 1775 – 1836. ... Carl Anderson 1905 – 1991 Explanation: PLEASE mark me as brainlist |
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| 1681. |
What is the difference between electricity and power? |
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Answer» Explanation: Electricity or electric current is caused DUE to the flow of electric charges from one point to other. It is measured in Amperes. Power is DEFINED as ENERGYCONSUMED PER unit time, energymeaning the capability to do work. It is measured in Watts. |
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| 1682. |
What is the difference between electric current and electric power? |
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Answer» ELECTRICITY or electric current is caused due to the flow of electric CHARGES from one POINT to other. It is measured in Amperes. Power is defined as ENERGY consumed per unit time, energy meaning the capability to do work. It is measured in Watts. |
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| 1683. |
D. Give reasons.1. When the temperature falls, theintermolecular space decreases.2. Water forms droplets.3. Brownian motion is not observed in solids4. Boiling of a liquid takes place from anypoint within the liquid5. Evaporation takes place only at the surface6. When a gas is cooled to a certain point, itcondenses.7. The melting point and freezing point of asubstance are the same. |
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Answer» Explanation: 1)On cooling gases and liquids, temperature falls intermolecular attraction increases intermolecular space between molecules decreases. 2) SURFACE tension causes water to form spherical droplets and allows it to SUPPORT small objects, like a SCRAP of paper or a needle, if they are placed carefully on its surface. Water molecules inside the center of the droplet have more neighboring water molecules to interact with than water molecules at the surface. 3)The Brownian movement is due to the bombardment of collodial particles by the molecules of dispersion medium which are in the constant motion like molecules in a GAS. 4)Some high energy particles on the liquid surface may have enough energy to escape the intermolecular forces of attraction of the liquid and become a gas. ... When a liquid reaches its BOILING point bubbles of gas form in it which rise into the surface and burst into the air. |
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| 1684. |
If the neutral wire is connected to the earth then no current will be flown back to the power station because all the current will be flown to the ground but in book it is written that neutral wire carries current to the power station? Please explain in simple wording |
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Answer» hdhdjddhjdudixuhdduduzi |
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| 1685. |
Is the neutral wire connected to the ground? |
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Answer» Answer: The neutral conductor is connected to earth at the building point of SUPPLY, but no common path to GROUND EXISTS for circuit current and the protective conductor. ... The neutral conductor is connected to earth ground at the point of supply, and EQUIPMENT cases are connected to the neutral. Explanation: |
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| 1687. |
A car travels with speed 30 km h-' for 30 minutesand then with speed 40 km h-1 for one hour.Find :(a) the total distance travelled by the car(b) the total time of travel, and(c) the average speed of car |
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Answer» Answer: Speed of CAR for first 30 minutes = 30 KM h^{-1}h −1
Speed of car for next 1 hour = 40 km h^{-1}h −1
(a) total DISTANCE travelled by the car First case Speed = distance / time distance = speed x time = 30 x 0.5 ---- (30 min = 0.5 hour) = 15 km ---- (i) SECOND case speed = 40 km h^{-1}h −1
distance = 40 km x 1 = 40 km ---- (II) Adding (i) and (ii) Total distance = 15 km + 40 km = 55 km (b) total time of travel = 0.5 hr + 1.0 hr = 1.5 hr (c) average speed = total distance travelled/total time taken = 5.5 km/ 1.5 hr = 36.67 km h^{-1}h −1 |
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| 1688. |
A body rises vertically up to height of 125 m in 5 s and then comes back at the point of projection. Find: (i) The total distance travelled, (ii) the displacement (iii) the average speed (iv) the average velocity of the body. |
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Answer» Explanation: Total distance=250m(125+125) Total displacement=0(because displacement is length between initial POINT and FINAL point. Here initial point and final point. So displacement is 0.) Average speed=Total distance÷total TIME taken =250÷10=25meter PER second Average velocity=Total displacement÷total time taken =0÷10=0 HOPE IT WILL HELP YOU |
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| 1689. |
Describe a simple experiment to illustrate the existence of intermolecular space |
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Answer» Answer: Take 100 ML of water in a measuring CYLINDER. Add 20 grams of salt in the water gently and stir it well so as to dissolve the salt well in water. It is NOTICED that the level of water does not change. It shows that the particles of salt occupy spaces between the particles of water. |
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| 1690. |
Why neutral wire has 0 voltage |
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Answer» Answer: Voltage is always MEASURED between two points. In electrical ENGINEERING, when we say the voltage at point X is V, we actually are measuring the voltage between point X and an implicit other point CALLED "ground". ... So the voltage of the neutral wire is always ZERO. |
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| 1691. |
Describe a simple experiment to illustrate trait the existence of intermolecular space |
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Answer» fyffufufjgufygigi |
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| 1692. |
Why do different substances of the same volume have different masses |
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Answer» Equal masses of different SUBSTANCES have different volumes. For example, the VOLUME of cotton is much LARGER than the volume of an equal mass of lead. This is because the particles of lead are CLOSELY packed while those of the cotton are very loosely packed. Equal volumes of different substances have different masses. |
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| 1693. |
a compact suitcase of 8kg falls from a helicopter, which is stagnant in the air, when it is at altitude of 320metre. calculate the momentum transferred to the ground by the suitcase when it strikes. (g=10m-²) no spam answers please answer correctly |
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| 1694. |
. A boy walks a distance of 30 m in 1 minute andanother 30 m in 1.5 minute. Describe the type ofmotion of the boy and find his average speedin m/s |
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Answer» Explanation: |
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| 1695. |
Who is that man? Do you know |
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Answer» SORRY i don't know Explanation: PLEASE MARK as BRAINLEIST |
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| 1696. |
Sprouted pulses are more in________. |
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Answer» Explanation: A VARIETY of NUTRIENTS are MADE more available in the SPROUTED phase |
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| 1697. |
1. массасы 100 г дене жер бетінен лақтырылғанда траекторияның нүктесіндегі 10 м/с болса, оның кинетикалық энергиясы |
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Answer» ENGLISH plz Explanation: |
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| 1698. |
Name the method used to determine the volumn ofan irregular object |
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Answer» measuring CYLINDER Explanation: |
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| 1699. |
Referring to the example combining series and parallel circuits and Figure 5, calculate I3 in the following two different ways: (a) from the known values of I and I2 ; (b) using Ohm’s law for R3. In both parts explicitly show how you follow the steps in the Problem-Solving Strategies for Series and Parallel Resistors above. |
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Answer» HGI hoiuygtfrdsfcvbnklhjgiyfutdyrsezdxfgh bjjbhvjgcfdxsrzdfxcv |
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| 1700. |
Define matter. What is its composition ? ( write in short) |
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Answer» Answer: Anything which occupies space and has mass can be DEFINED as matter. Matter is composed of tiny PARTICLES known as ATOMS. It can be felt by our SENSE of smell, touch, sight, hearing and taste. Explanation: PLEASE mark as brainlist |
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