This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Water is falling on the blades of a turbine at the rate of 6 x 109 kg per minute. The height of the fallis 10 m.Calculate the power given to the turbine. Take g10 ms 2 |
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Answer» i THINK that is 2000ms |
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| 2. |
Health of an organism depends surrounding environment conditions. justify |
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Answer» Answer: 1) Health of an organisms depends upon the surrounding environmental CONDITION because if there will be garbage on the streets and there is OPEN drainage or something else then the pathogens will TAKE birth there. ... If there will be stagnant water then the mosquito will take birth which can cause severe diseases. |
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| 3. |
Four objects are placed on the table Weight of all four objects is an exampleA) parallel forcesC) like parallel forcesB) perpendicular forces D) unlike parallel forces |
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Answer»
Two equal and UNLIKE PARALLEL FORCES not acting at the same point are said to constitute a couple. ... If two couples, WHOSE MOMENT is equal and opposite, act in a same plane on a rigid body, they balance one another. |
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| 4. |
Drive and expression for maximum safety speed with which vehicle should move along a horizontal Road state the significance of it |
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| 5. |
A group of objects that can form a unit which may have ability to exchange energy with itssurrounding is called what? |
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Answer» A group of objects that can FORM a UNIT which may have ABILITY to exchange ENERGY with its surrounding is called THERMODYNAMIC system. |
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| 6. |
an object of 40 cm high is placed in front of plane mirror at a distance of 100 cm the height and position of the photo Will be respectively |
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Answer» Answer: no change as it is Explanation: it plane mirror show we know that in plane mirror the IMAGE and image DISTANCES are same this is the most FAMOUS FACT about a plane mirror |
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| 7. |
A force can change the direction of motion of a moving body true/false |
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Answer» Force can change the DIRECTION and MOTION of a MOVING object. |
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| 8. |
1. A car is initially at rest. It has a constant acceleration of 2.0m/s^2.Calculate the distance travelled by the car at the end of 10s. |
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Answer» Answer: Given, Initial Velocity (u) = 0 m/s Time (t) = 10s Acceleration (a) = 2 m/s² Distance TRAVELLED (S) = UT + 0.5at² = [0*10] + [0.5*2*10*10] m = 100 m or, 0.1 km I hope this HELPS. |
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| 9. |
Please help me And If you can please send the answere on answer dont type it become difficult to understand |
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| 10. |
A car is being driven by a force of 2.5 x 10'' N. Travelling at a constant speed of5 m/sec. It takes 2 minutes to reach a certain place. Calculate the work done. |
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Answer» kcusoeje84 jxztrndorhr8rnrle whidpfd JRJP |
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| 11. |
a thin rod of length 5m is initially at a temperature of 40C.if the rod is heated to a temperature of 80C,what is the change in the length of the rod.alpha=19×10^-16 k^-1 |
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Answer» Pas 800900 |
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| 12. |
But it was under the rule of1. The Gupta Empire was founded bythat the Empire rose to prominence. |
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Answer» Answer: Sri Gupta In ANCIENT India, the Gupta Dynasty ruled the mid-to-late 3rd CENTURY (approximately) to 543 AD. Founded by Sri Gupta, the dynasty rose to FAME with rulers like Chandragupta-I, Samudragupta, etc. |
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| 13. |
(1) Blue coloured solution is given in the figure. Which solution is it? What causes the colourchange in this solution. Explain.green colour solutionBlue colour solutionRadish iron nailIron nail(2) A flag near the check post furls in the direction of sea. Is it midnight or afternoon? Why? (3) Describe the experiment showing the conduction of heat in solid substance with diagram. |
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| 14. |
(xx) The value of the total impedance in S-domain is initial conditions are taken as 0)?RV1: |
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Answer» Answer: .kpu-ckbw-nto No BOYS alloweded interested only can come |
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| 15. |
Write the relation between the time periodsof above two simple harmonic motions. |
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Answer» Answer: The oscillations of a system in which the net force can be described by Hooke’s law are of special importance, because they are very COMMON. They are ALSO the simplest oscillatory systems. Simple Harmonic Motion (SHM) is the name given to oscillatory motion for a system where the net force can be described by Hooke’s law, and such a system is called a simple harmonic oscillator. If the net force can be described by Hooke’s law and there is no damping (by friction or other non-conservative forces), then a simple harmonic oscillator will oscillate with equal displacement on either side of the equilibrium position, as shown for an object on a spring in FIGURE 1. The MAXIMUM displacement from equilibrium is called the amplitude X. The units for amplitude and displacement are the same, but DEPEND on the type of oscillation. For the object on the spring, the units of amplitude and displacement are meters; whereas for sound oscillations, they have units of pressure (and other types of oscillations have yet other units). Because amplitude is the maximum displacement, it is related to the energy in the oscillation. |
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| 16. |
What is the shape of the wavefront on earth surface |
Answer» As the sun is very-very far from the earth so can be considered at INFINITY and sun can be considered as a point source which gives spherical WAVEFRONT. The size of the earth is very small as COMPARED to distance of sun from earth and size of the sun so the plane wavefront REACHES on earth as shown in figure here. |
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| 17. |
How does the mean free path of the molecules of a given gas change when itspressure is increased at a constant temperature ? |
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| 18. |
1st pu all physicst and their discoveres write |
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Answer» Answer: FAMOUS Scientists And Their Inventions A SCIENTIST is someone who explores the nature of the universe. On the other hand, an investigator is someone who tries to CREATE useful devices and products. A few PEOPLE have been successful in both ENDEAVOURS. Given below is a list of discoveries that includes 17 famous scientists and their discoveries. Explanation: |
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| 20. |
A heatPump isusedtomaintain anauditoriumhall at 24°c when theatmospherictemp is10°c.The heat loss is1500 KJ/minCalculate thePowerrequired to run the heat pump if its cop is 30% of carnot machine working between same temp limits? |
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| 21. |
Please answer questions 4 to 7 with all choices in the questions ❤️❤️❤️ |
Answer» Question 04.Near room temperature, the heat capacity of most solids is around 3K per atom (the MOLAR heat capacity for a solid consisting of n-atom molecules is ~3nR). This is the well-known Dulong and Petit law. 2. At low temperatures, Cv decreases, becoming ZERO at T=0. Question 05.Given : x=Acosωt Potential energy, On plotting a graph between potential energy U and TIME t, we SHALL get a curve II and graph between U and x we shall get curve IV. Question 06. in attachmentQuestion 07.This is the relative error. Percentage error =0.01×100=1% |
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| 22. |
What will be the value of acceleration due to gravity at a height 2R from the surface of earth |
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Answer»
Starskids customer/care/NUMBER ( 7699989038--8391853549 ) all PROBLEM SOLVE number 42+7
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| 23. |
What is the shape of the wave front on earth surface |
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Answer» Explanation: The wavefront on EARTH for the sunlight (treated as point SOURCE) will be spherical. |
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| 24. |
Derive an expression for the energy of an electron in the atom |
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Answer» Answer: CONSIDER a hydrogen like atom having only ONE electron. The force acting on the electron will be given by COULAMB's law. F=(Ze)(-E) 4π0r,=Ze24π0r. Since it is a circular motion, this force will be the force required to keep the electron in circular motion and hence will be equal to the CENTRIPETAL force. |
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| 25. |
State the totalthe total internal reflection phenomenonwith suitable diagram. |
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Answer» Total internal Reflection If a ray of light travelling in a denser medium STRIKES a rarer medium at an angle of INCIDENCE i which is greater than the critical angle C , it GETS totally reflected back into the same medium this phenomenon is CALLED as 'total internal reflection' Diagram is attach More Information Critical angle When a ray of light goes from denser medium to a rarer medium, the angle of refraction is greater than the angle of incidence . if the angle of incidence is increased the angle of refraction may eventually BECOME 90° The angle of incidence for which the angle of refraction is 90° is called the critical angle for that interface . it is generally Denoted by C |
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| 26. |
PAGE NODATE2. The Energy (E) of object in motion dependuponthe mass (m) of the object and velocity vof its motion. Using dimensional analysis determinethe relationships between the given physicalare quantity : |
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Answer» hakkam hdbnl hdyhslbsgv |
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| 27. |
Define electric power and derive an expression for power in terms of v and i |
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Answer» your QUESTION is wrong but the relation between v and i I explain.. Ohms LAW= Ohm's law was given by scientist OM in 1826 it is straight that at a constant temperature current(i) flowing in a conductor is definitely proportional to the potential difference apply a CROSS It Ends .फार्मूला V=iRwhere R is a constant and R is Resistance I is current you know very well V = I×r |
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| 28. |
Can you give explanation to this question guys? |
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| 29. |
80) In a purely inductive circuit-A. Actual power is zeroB. Reactive power is zeroC. Apparent power is zeroD. None of these |
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Answer» Answer: OPTION (A) IS THE RIGHT ANSWER.ACTUAL POWER IS ZERO.Explanation: I HOPE YOU UNDERSTAND NOW. |
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| 30. |
@ The local length of a denses 10 cm. An objectfront of the lense at a distance5cm. Write down the natural and slee of the image formed .place |
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| 31. |
What is the maximum angle of incidence on the core for whichtotal internal reflection takes place inside the core. |
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Answer» Explanation:
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| 32. |
A) If a women is using a copper-T, will it help in protecting her from sexuallytransmitted diseases?b) Can you think of reasons why more complex organisms cannot give rise to newindividuals through regeneration? |
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Answer» a) it won't protect b) because COMPLEX orgasm are complex and have organs and ORGAN system. |
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| 34. |
If i am running with constant velocity does this mean i am not applying force |
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Answer» Answer: Explanation: If a body is moving with CONSTANT VELOCITY, acceleration is ZERO. So NET force acting on it will be also zero. But the body has energy due to its constant motion. ... So it doesn't have net forces acting on itit Hlw.. It's ur Answer |
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| 35. |
জলের সঙ্গে ২.৩g na বিক্রিয়ায় উৎপন্ন H2 গ্যাসের ভর এবং stp-তে আয়তন কত হবে? |
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Answer» I can't UNDERSTAND PLEASE TELL again |
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| 36. |
State any three properties of scaler product of two vectors |
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Answer» Explanation: Characteristics of the SCALAR Product:
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| 37. |
A hollow sphere has radius 6.4 m. what is the minimum velocity required by a motorcyclist at bottom to complete the circle. (Ans: V=17.7 m/s ) |
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Answer» Explanation: R mv 0 2
=mg⇒v 0 2
=gR Now, from conservation of energy: K 1
+∪ 1
=K 2
+∪ 2
2 1
mv 2 +0= 2 1
mv 0 2
+mg(2R) ⇒v 2 =gR+4gR⇒v= 5gR
⇒v= 5×10×6.4
=17.7m/s solution |
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| 38. |
Calculate u⁵ for a d⁴ system |
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Answer» Final speed of the cat=17 m/s
Given: Initial speed (u) = 3 m/s Acceleration (a) = 2 m/s² Time taken (t) = 7 seconds To Find: Final speed (v) of the cat Explanation: \SF From \ 1^{st} \ EQUATION \ of \ motion:From 1 st equation of motion: \boxed{ \bold{v = u + at}} v=u+at
Substituting values of u, a & t in the equation: \sf \implies v = 3 + 2(7)⟹v=3+2(7) \sf \implies v =3 + 14⟹v=3+14 \sf \implies v =17 \: m/s⟹v=17m/s |
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| 39. |
Which activity will be least likely to lead to the extinction of specie |
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Answer» santi Explanation: |
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| 40. |
The law that governs the relationship between volume and temperature of a gas at constant pressure |
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Answer» Answer: BOYLE's lawBoyle's law gives the RELATIONSHIP between the pressure of a GAS and the volume of the gas at a CONSTANT temperature. Basically, the volume of a gas is INVERSELY proportional to the pressure of a gas at a constant temperature. |
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| 41. |
8. The Deccan Plateau is an example ofaplateau in India. Fill in the black |
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Answer» Answer: the Deccan is a PENINSULAR plateau located in central India that includes inland SECTIONS of the STATES of ANDHRA Pradesh, Maharashtra and Karnataka. Explanation: please mark me as BRAINLEST |
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| 42. |
Which are main types of cell division ? |
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Answer» Answer: There are two types of cell division: mitosis and meiosis. Most of the TIME when PEOPLE refer to “cell division,” they mean mitosis, the process of making new BODY cells. Meiosis is the type of cell division that creates egg and sperm cells. |
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| 43. |
What is the reason for the decrease in the speed of whirling of water |
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Answer» Answer GIVEN below |
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| 44. |
What is Resistivity? |
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Answer» RESISTIVITY, electrical RESISTANCE of a conductor of unit cross-sectional AREA and unit length. ... A characteristic property of each material, resistivity is useful in comparing various materials on the basis of their ABILITY to CONDUCT electric currents. High resistivity designates poor conductors. |
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| 45. |
Kamya it's me dev how are youbhoomika yaar sis koch samaj nhi Aya |
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Answer» Answer: |
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| 46. |
In the given diagram, electric current is flowing from conductor A to conductor B when both conductors are connected by metallic wires. Label the diagram marking the followinga) Conductor at higher potentialb) Conductor at lower potentialc) Direction of conventional currentd) Direction of flow of electrons |
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| 47. |
Defn Absolute error. |
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| 48. |
7. Plateaus are flat lands without any relief and are also called_______ |
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| 49. |
Write in short additive nature of charges. |
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Answer» Answer: The additive nature of CHARGE is one of the PROPERTY of electric charge. The ENTIRE electric charge of a system is equal to the algebraic sum of electric charges located in the system. This is the law of SUPERIMPOSITION of electric charge. I hope it helps.. Thank you.. |
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| 50. |
1. The following statement/s is/are true for the conventional direction of flowof electric current in the circuit. That is P(i) low potential to high potential.(ii) high potential to low potential.(iii) electron rich region to electron deficient region.(iv)electron deficient region to electron rich region.(A) (i) and (iii)(B) (ii) and (iii)(C) (i) and (iv)(D) (ii) and (iv) |
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Answer» In the below GIVEN FIGURE ‘P’ refers to which PROCESS. Identify and mention its TYPE and any two changes involved in the whole process. (Reversible and IRREVERSIBLE) |
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