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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.
| 10801. |
What is coinitial vectors? |
| Answer» The vectors which have the same initial same point is called co initial vectors. | |
| 10802. |
Diffrentiate under root (1+x)/1-x) |
| Answer» Are both I\'m root like this :-√1+X/√1-X | |
| 10803. |
What do you mean by bond angle? |
| Answer» | |
| 10804. |
Whatever is charge |
| Answer» | |
| 10805. |
What do you mean by angular velocity |
| Answer» The velocity whose angle changes with respect to time. | |
| 10806. |
What is the relation between lightyear and parsec? |
| Answer» 1parsec=3.26light year | |
| 10807. |
What is meant by polar and axial vector? |
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Answer» Thnx. Polar vector is the vector which has starting point and axial vector is vector which shows rotational effect to its centre on the circle. Vectors having translatory effect are called polar vectors and vectors having rotatory effect are called axial vectors |
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| 10808. |
When will be class 10 result come? |
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Answer» On 28 may Going to be announced soon It has not been declared by CBSE yet . On 30th may After 3-4 days |
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| 10809. |
What is angular diameter |
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Answer» 2 means What 2 |
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| 10810. |
What do u mean by parallax method. With example |
| Answer» To measure large distances we use an important method i.e, called parallex method.if we look at a pencil held in front of eyes against a fixed reference i.e plain wall with left eye,closing right eye then with right eye,closing left eye observe that position of pencil seems to change w.r.t fixed reference point i.e wall.this is called PARALLEX.Distance between eyes is called basis.FOR EXAMPLE - if we see mars by two laboratories or observateries at same time, position of mars seems to change w.r.t observateries this is parallex and distance between two observateries is basis. | |
| 10811. |
When result is coming of 10th class 2018 cbse |
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Answer» on 30th may In the end of may |
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| 10812. |
Why electricity produce sound When it goes very high voltage |
| Answer» The audible noise emitted from high-voltage lines is caused by the discharge of energy that occurs when the electrical field strength on the conductor surface is greater than the \'breakdown strength\' (the field intensity necessary to start a flow of electric current) of the air surrounding the conductor. | |
| 10813. |
how many percentages you are expecting in class 10? |
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Answer» And about you Near 95 80 above |
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| 10814. |
Coulomb\'s law |
| Answer» a law stating that like charges repel and opposite charges attract, with a force proportional to the product of the charges and inversely proportional to the square of the distance between them. | |
| 10815. |
how was ur study |
| Answer» | |
| 10816. |
Find dimensional formula of gravitational constant. |
| Answer» M^-1L^3T-2 | |
| 10817. |
Is it true that in 11 standard, we must have to study 2 books of ncrt of each subject?? |
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Answer» Yes ofcourse yes, there are two parts of each book |
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| 10818. |
G=6.67*10power -8 MKS INTO CGS |
| Answer» | |
| 10819. |
d/dx(x+1/x^2-1) |
| Answer» Is X has power 2-1 | |
| 10820. |
hlw frnd plz ans my ques quickly plz |
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Answer» which sub is good with bio hindi ol computer Question Wht the que?? |
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| 10821. |
Difference between elastic collision and non elastic collision |
| Answer» Exam point | |
| 10822. |
Newton law of cooling proof |
| Answer» -dT/dt is directly proportional to t-t° so- dT/dt = k(t-t°) and dT/t-t=kdt integration both side log(t-t°) = -kdt +c and t-t°=e,power -kdt + c | |
| 10823. |
Marking scheme of finale paper of physics |
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Answer» Wahhhh? Marking scheme of final paper physics |
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| 10824. |
Show that in the absence of external force , velocity remain constant |
| Answer» | |
| 10825. |
Convert 37 degree in sconds |
| Answer» | |
| 10826. |
Class11physics final exam question paper year 2018 with solution |
| Answer» | |
| 10827. |
From cbse textbook charging by induction |
| Answer» | |
| 10828. |
Derive the equation of projectile motion? |
| Answer» Y=x.tanTheta [1-x/R] | |
| 10829. |
What is the coefficient of restitution? |
| Answer» Coffecient of restitution is coffiecient of kinetic friction ÷R | |
| 10830. |
What is elastic behaviour of solids |
| Answer» | |
| 10831. |
What is coefficient of performance? |
| Answer» The coefficient of performance is the ratio of heat absorbed from sink to the work done on the working substance to reject the heat.Mathematically, it is given by\xa0β = Q2/W = Q2/Q1 - Q2 | |
| 10832. |
Why we can not travel in space |
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Answer» We can travel in space bro? We can |
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| 10833. |
What is doplers effect? |
| Answer» The apparent change in frequency of the wave due to motion of the source or the observer is called Doppler effect | |
| 10834. |
What is Bernoulli principal ? |
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Answer» Bernoulli’s Principle\tFor a streamline fluid flow, the sum of the pressure (P), the kinetic energy per unit volume (ρv2/2) and the potential energy per unit volume (ρgh) remain constant.\tMathematically:- P+ ρv2/2 + ρgh = constant\twhere P= pressure ,E./ Volume=1/2mv2/V = 1/2v2(m/V) = 1/2ρv2E./Volume = mgh/V = (m/V)gh = ρgh\t\t For an idle liquid flowing in a stream line flow the total energy per unit volume or unit mass at any general position and at any general time remain constant . |
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| 10835. |
Derive and expresion exxess pressure inside aliquid |
| Answer» Consider a liquid drop of radius \'r\' . The molecules on the surface of the drop experience a resultant force acting inwards due to surface tension. Therefore, pressure inside the drop will be greater then pressure outside the drop. It provides a force acting outwards perpendicular to the surface, to balance the resultant force due to surface tension. Let the drop be divided into two equal halves.Considering the equilibrium of the upper hemisphere of the drop, the upward force due to excess pressure will be P π r² , where P is the pressure.If \'T\' is the surface tension then force acting downward along the circumference of the circle due to surface tension is T2πr .At equilibrium,\xa0P π r² = T 2 π rP = 2T/rwhich is the required pressure. | |
| 10836. |
Why are shockers provided in cars and scooter |
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Answer» To prevent jerks Can u help me From Newton\'s second law of motion. It is done to decrease the rate of change of momentum by increasing the time interval & hence reducing the impact force during jerks. |
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| 10837. |
How is inertia related to mass of the body? |
| Answer» Inertia is directly proportional to mass of the body. | |
| 10838. |
Derive the relationship between alpha beta & gamma |
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Answer» Alpha:beta:gamma=1:2:3 1:2:3 is the ratio of alpha bita gamma and also it relationships |
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| 10839. |
Parllel vector |
| Answer» Both vector have same direction.----->--------->Both are parallel vector.Only direction must be same.In parallel vector distance/length does\'t matter.In this angle between two vectors is zero.If we match tail to tail or head to head angle must be 0° | |
| 10840. |
Gravitational force is due to which |
| Answer» Force of Attraction between 2 masses | |
| 10841. |
What is zero work? |
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Answer» W=f.s . So when sin 0° then work is zero Either force is 0 or displacement is 0 or resultant is 0 |
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| 10842. |
Why speed is scalar quantity |
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Answer» Speed only shows magnitude not direction Because it is distance divided by time both are scalar therefore it is also scalar Because it doesn\'t need direction of motion. As magnitude matters not directed means no direction |
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| 10843. |
Bernaullis equation |
| Answer» P/density+1/2×v square+gh=constant | |
| 10844. |
Jin logo ka physics ka exams ho gya unke paper m numericals jada the ya derivations |
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Answer» Derivations Numericals Tum konse school main ho Dono equalFrom opgm chandausi Mujhe bhee yahi pta krna tha?? Ptaa nii |
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| 10845. |
Important topic or questions which will be coming in exams plzz help guys!! Tommorow is my exam!! |
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Answer» Relation cp- cv =R, pulling is easy,thermal expansion,dooplers effect, torque=dl/dt, capillary action,bernaulli theorem ,excess pressure inside bubble,carnots engine,escape velocity modes of vibration in closed organ pipe , angle of repose, relative velocity and it\'s expression . according to me maximum example Will come out of it In which school do you study |
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| 10846. |
define two specific heats of gas.write the relation between them? |
| Answer» Cp and Cv are 2 specific heats of gas. Cp-Cv = R | |
| 10847. |
If Z =x2 *y3/a5/4 |
| Answer» | |
| 10848. |
Explain the cavendish experiments for the determinatiin of the universal constant G |
| Answer» Gravitational Constant: Cavendish experiment\tCavendish performed an experiment to calculate the value of G.\tTo calculate the value of G he took a wooden plank and attached two 2 balls on either side of the plank and hung this with a thin thread from the top.\tHe introduced 2 very big balls and those balls are near the smaller balls.\tHe observed that the small balls got attracted to big balls and wooden plank started rotating and as a result the thin thread started twisting.\tThis happened because of force of attraction between the small balls and bigger balls.\tHe observed that :-\tPlank rotates till twisting force becomes equal to the gravitational force between the balls.? = G m1m2/r2LƟ = G m1m2/r2\tBy using the above equation he calculated the value of G,\tG= 6.67x10-11Nm2/kg2 \tUnits of G : Nm2/kg2 | |
| 10849. |
Define work energy theoarm |
| Answer» Work energy theorum states that the work done by any body is equal to the change in it\'s kinetic energy.W=Kv-Ku | |
| 10850. |
Physic is a |
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Answer» Study of nature and natural phenomenon Study of nature and natural phenomena |
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