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♭ᾰԻᾰк .❤energy of incident Photon, E = HC/ lemda = 1242 eV nm/ 300nm = 4.14 eV ELECTRON will be knocked out of the hydrogen atom if:-E > 13.6 eVelectron will go to First EXCITED state if :- E > 10.2 eV so only electron will keep orbiting in the GROUND state of the atom. тℏᾰℵкṧ

When the length of the wire is doubled, thd area will be halved.For example,Cosider some sort of dough or something you make chappathis with.Take a roll of it ant stretch it.You will see the roll BECOMING thinner as you stretch it.So, the area of cross section decreases directly ptoportional-ly to the AMOUNT of stretching.Same is the case here.If the wire is STRETCHED 4 TIMES its original length, the area becomes A/4 and so on.Hope you UNDERSTOOD.

Explanation:The ORDER of magnitude of a physical quantity is its magnitude in powers of ten when the physical quantity is expressed in powers of ten with ONE digit to the left of the decimal. Orders of magnitude are generally used to make very APPROXIMATE comparisons and reflect very LARGE differences.

t of the following : MASS - kilogram (KG)Weight - Newton (N)VELOCITY - Metre/second (m/s)WORK - Joule (J)Power - Watt (W)______________________

s.i UNIT of momentumkillogram METRE PER SECOND kgm/s

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F/MRExplanation:By PRINCIPAL of MOMENT, ( In the question it is not mentioned WHETHER it is solid or HOLLOW SphereI have done it by considering it a solid one)

(1-n)fExplanation:Given, the image of an OBJECT OBTAINED by a convex MIRROR is n times smaller than the object and the focal length of the mirror is f.Assuming, = height of the image. = height of the object. Therefore, .The MAGNIFICATION of the mirror is given byThe magnification of the mirror is also DEFINED in terms of object distance and image distance from the mirror asAccording to the mirror equation,.Putting the value of ,

o the ATTACHMENT. (C) m = - 4Hope it HELPS U ✌ ✌

ᴇʀᴇ ɪs ᴜʀ ᴀɴsᴡᴇʀ  ᴛʜᴇ ᴘʀᴏᴄᴇss ᴏғ ᴍɪxɪɴɢ ʟɪϙᴜɪᴅs ᴛᴏ ғᴏʀᴍ ᴀɴᴇᴍᴜʟsɪᴏɴ ɪs ᴄᴀʟʟᴇᴅ ᴇᴍᴜʟsɪғɪᴄᴀᴛɪᴏɴ. ᴇᴠᴇɴ ᴛʜᴏᴜɢʜ ᴛʜᴇ ʟɪϙᴜɪᴅs ᴛʜᴀᴛ ғᴏʀᴍ ᴛʜᴇᴍ ᴍᴀʏ ʙᴇ ᴄʟᴇᴀʀ, ᴇᴍᴜʟsɪᴏɴs ᴀᴘᴘᴇᴀʀ ᴄʟᴏᴜᴅʏ ᴏʀ ᴄᴏʟᴏʀᴇᴅ ʙᴇᴄᴀᴜsᴇ ʟɪɢʜᴛ ɪs sᴄᴀᴛᴛᴇʀᴇᴅ ʙʏ ᴛʜᴇ sᴜsᴘᴇɴᴅᴇᴅ ᴘᴀʀᴛɪᴄʟᴇs ɪɴ ᴛʜᴇ ᴍɪxᴛᴜʀᴇɪ ʜᴏᴘᴇ ɪᴛs ʜᴇʟᴘ ᴜ

ile motion is a form of motion experienced by an object or particle (a projectile) that is THROWN NEAR the Earth's surface and moves along a CURVED path under the action of gravity only (in particular, the EFFECTS of air resistance are assumed to be negligible).mark as BRAINLIEST

gExplanation:ANSWER is in ATTACHMENT

Q7 answer b FOUR timesQ8 answer d -4m/sQ9 answer C on his handExplanation:plz follow memark as BRAINLEST

we should PLAY in the GARDEN

of the FORCE of GRAVITY

battery is connected to a circuit, the electrons from the anode TRAVEL through the circuit toward the cathode in a DIRECT circuit. The voltage of a battery is synonymous with its ELECTROMOTIVE force, or emf. This force is responsible for the FLOW of charge through the circuit, known as the electric CURRENT.

It will be Z. EXPLANATION:For an inductor we call it as impedance that is Z. We USE R only for resistance

The first ONE WOULD require greater force.Explanation:we know that F=main first case, F=3*6=18Nin SECOND case , F=4*4=16N.Therefore we can say that first case require greater force.hope it HELPS you!!!

this QUESTION is of which CLASS

tion:True north (also called geodetic north) is the direction along EARTH's surface towards the geographic North Pole or True North Pole.Geodetic north differs from magnetic north (the direction a compass points toward the Magnetic North Pole), and from GRID north (the direction northwards along the grid lines of a MAP projection). Geodetic true north also differs very slightly from astronomical true north (typically by a few arcseconds) because the local gravity may not POINT at the exact ROTATIONAL axis of Earth.The direction of astronomical true north is marked in the skies by the north celestial pole. This is within about 1° of the position of Polaris, so that the star would appear to trace a tiny circle in the sky each sidereal day. Due to the axial precession of Earth, true north rotates in an arc with respect to the stars that takes approximately 25,000 years to complete. Around 2100–02, Polaris will make its closest approach to the celestial north pole (extrapolated from recent Earth precession).[1][2][3] The visible star nearest the north celestial pole 5,000 years ago was Thuban.[4]

Gauss's law for magnetism is one of the four Maxwell's equations that UNDERLIE classical electrodynamics. It states that the magnetic field B has divergence equal to zero,[1] in other words, that it is a solenoidal vector field. It is equivalent to the statement that magnetic monopoles do not exist.[2] Rather than "magnetic charges", the basic entity for magnetism is the magnetic dipole. (If monopoles were ever found, the law would have to be modified, as elaborated below.)Gauss's law for magnetism can be written in two FORMS, a differential FORM and an integral form. These forms are equivalent due to the divergence theorem.The name "Gauss's law for magnetism"[1] is not universally USED. The law is also called "Absence of free magnetic poles";[2] one reference even explicitly says the law has "no name".[3] It is also referred to as the "transversality requirement"[4] because for plane waves it requires that the polarization be transverse to the direction of propagation.Differential form

(MT)EXPLANATION:L= M and G= MT-²So,lg= (M²T-²)= (MT-¹)² Thus,√lg= MT–¹

PE is not defined only change in PE from one POSITION to the other is definedif you consider GROUND to be PE level 0 then the PE on the ground will be 0BUT you can take any POINT as PE level 0 so if you take say the point 10 metre above ground as PE level 0 then the PE on the ground will be mgh i.e. -10mg

tion:E = mc2, equation in German-born physicist Albert Einstein’s theory of SPECIAL relativity that expresses the FACT that mass and energy are the same PHYSICAL entity and can be changed into each other. In the equation, the increased relativistic mass (m) of a body times the SPEED of light squared (c2) is equal to the KINETIC energy (E) of that body.

e = 5M And ACCELERATION in m\s = a(1) = 5m\s a(2) = 10 m\s

25mExplanation:USE WORK KINETIC ENERGY THEOREM

13 (B) Explanation:Because Gravitonal FORCE is inversely PROPORTION to the DISTANCE between two objects

where is the DIAGRAM..........

tic NEEDLE kept non-parallel to the magnetic FIELD in a non-uniform magnetic field EXPERIENCES (C) both a force and a torque.Explanation:The magnetic needle as North Pole and South Pole which acts as magnetic dipole.Since, it is placed in non-uniform magnetic field, then the forces acting at the two ends of the needle is different from each other. Thus, force is acting on the needle.From QUESTION, the field is not parallel. Thus, torque is acting on the needle.So, both torque and force is acting on the magnetic needle.

D EXPERIENCE attraction or repulsiom DEPENDING upon which POLE is brought near to it

HLO FRIEND YOUR ANSWER IS Answer 9.(B) Equal to the slope of the graph.Answer 10.(d)AREA under the graph.HOPE THIS IS HELPFUL TO YOU

Multiple reflection of LIGHT is thereflection of light BACK and forth several times between reflectingsurfaces. If a reflected light ray isreflected again on being incident on ANOTHER surface, it is TERMED multiple reflections. ... In a Kaleidoscope, beautiful patterns are formed DUE tomultiple reflections

travels from p to q (H1-H2 )(potienal energy ) p =Q ( kinetic energy) mg( h1 - h2) = 1/2mv^2 2G(h1-h2) = V^2 ###(√2g ( h1-h2 ) = v ) ANSWER