This is most confused question and discuss many peoples here is right answer with reference
1. Water is heated in a kettle. The inside water is heated by convection. A person sitting near the fire receives heat by:

a) Conduction
b) Convection
c) Radiation
d) Reflection
e) None of these

Reference is Fundamental of Physics by Halliday Resnick Walker Page no 627 8th edition

It would nt happen, u r simply ruling out law of thermodynamics,it is impossible.

see reference it is from thermodynamics chapter.

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thank you for solving the paper

ds z all very confusing everyone z givin their own answers plz post original answers

are these answers are correct

solar energy is a form of energy. the answer is no

let the forum members help out sorting correct answers.do any body know
1.Water is heated in a kettle.The inside water is heated byconvection. A person sittingnear the fire receives heat by
: a) Conduction
b) Convection
c) Radiation
d) Reflection
e) None of these
2. A time can come when we
will be able to design a
machine which can go on
working for ever without theexpenditure of energy. Is itpossible ?
a) No
b) Yes
c) In due course time
d) Very soon
e) None of these
3. The measurement of rainfallis made by an instrument known as
: a) Hydrometer
b) Barometer
c) Hygrometer
d) Pedometer
e) None of these
4. Light year is a unit of
: a) Distance
b) Time Period
c) Light intensity
d) Time
e) none of these
5. Three elements needed forthe healthy growth of plants are :
a) N,P,K
b) N,C,P
c) N,K,C
d) N,S,P
e) none of these
6.Copper can be converted
into gold by :
a) Heating
b) Artificial Radioactivity
c) Electroplating
d) Chemical reaction
e) None of these
7. In winter an iron pipe feelcolder than a wooden
window . This is because
wood is
: a) Conductor
b) non-Conductor
c) Semi- Conductor
d) Not a solid while iron is a
solid
e) None of these
8. The echo (reflected sound)will be distinctly heard only atordinary temperatures if the
distance of the reflecting
surfaces from the source of
sound is at least :
a) 1120 ft
b) 120 ft
c) 56fft
d) 100 ft
e) None of these
9. It is possible to recognize aperson in the dark by simplyhearing his unique voice . It isbecause of the:
a) pitch
b) Frequency
c) Time period
d) Quality
e) None of these
10. When a ray of sunlight
enters a dark room , its
straight path become visible
because of dust particles
hanging in the air. It is becauselight is :
a) Visible
B) Transparent
c) Invisible
d) opaque
e) None of these
11. Animals obtain carbon
dioxide mainly from :
a) Starch
b) Sucrose
c) Glucose
d) Glycogen
e) None of these
. . . , . . . . . . . .. .. . . . . . . . . . . ,
. . . .

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evry vison is a jok untl some1 achivz it

1.Radiation(when heat moves through a surface without surface contacting the origin of heat)
2.No
3.i think none of these
4.Distance
5.option b or c
6.artificial radioactivity
7.non-conductor
8.
9.pitch
10.
11.glucose

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نقاش فاطمہ

1c 2a 3e 4a 5a 6b 7b 8c 9a

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