05:29
A system goes from P to Q by two different paths in the P−V diagram as shown in (figure). Heat given
01:44
Calculate the external work done by the system in Kcal when 40 Kcal of heat is supplied to the syste
01:21
When heat energy of 1500J is supplied to a gas the external workdone by the gas is 525J what is the
03:56
In the following circuits (Figure 12.2), heat produced in the resistor combination of resistors conn
02:04
In an electrical circuit three incandescent bulbs A, B and C of rating40 W, 60 W and 100 W respectiv
01:54
If the current I through a resistor is increased by100% (assume that temperature remainsunchanged),
02:42
A cylindrical conductor of length l and uniform area of cross-section A has resistance R. Another co
01:53
A current of 1 A is drawn by a filament of an electric bulb. Numberof electrons passing through a cr
03:14
Under what condition in an arrangement of two plane mirrors,incident ray and reflected ray will alwa
02:05
Sudha finds out that the sharp image of the window pane of herscience laboratory is formed at a dist
02:52
Size of image of an object by a mirror having a focal length of 20cm is observed to be reduced to
03:44
Identify the device used as a spherical mirror or lens in followingcases, when the image formed is v
01:27
Refractive index of diamond with respect to glass is 1.6 andabsolute refractive index of glass is
04:38
A student focussed the image of a candle flame on a white screenusing a convex lens. He noted down
03:17
Figure 10.1 shows a ray of light as it travels frommedium A to medium B. Refractive index of the
02:55
A beam of light is incidentthrough the holes on side A andemerges out of the holes on theother face
03:38
A 10 mm long awl pin is placed vertically in front of a concave mirror. A 5 mm long image of the awl
12:53
Heating Effect of Electric Current
20:26
Resistance
02:18
Rainbow Formation Diagram
04:59
Dispersion and Recombination
25:39
Myopia and Hypermetropia
19:58
Concave and Convex Lens
20:48
Ray Diagrams of Myopia and Hypermetropia
32:10
Sign Convention and Magnification
41:06
Ray Diagranms Of Convex and Concave Lens
29:53
Convex Mirror
01:00:33
Concave Mirror
52:18
Ray Diagrams Of Concave and Convex Mirror
32:22
Plane Mirror
37:19
Power of Lens
27:58
Refractive Index
29:42
Refractive Index
08:02
Current Electricity II Testing Ammeter & Voltmeter II Resistance II Experimental Learning 12
40:48
Refractive Index
35:52
Refractive Index numerical, Problems on Absolute Refractive Index
55:54
Current Electricity II Combination Of Resistances II Basic to Advance
01:42
Current Electricity II Potato Battery Experiment II Experimental Learning 10
10:37
Current Electricity II Unlock Digital Multimeter II Experimental Learning 04
02:52
Current Electricity II Checking Continuity Using Multi meter II Experimental Learning 05
07:55
Current Electricity II Rheostat Connection and Working II Experimental Learning 06
06:33
Current Electricity II Colour Coding of Resistance II Best Way II Experimental Learning 07
10:38
Current Electricity II How to Use Breaboard II Experimental Learning 08
09:58
Current Electricity II Combination of Resistances II Experimental Learning 09
09:10
Current Electricity II Ammeter & Voltmeter II Least Count II Experimental Learning 03
03:29
Current Electricity II Learning Plug Key Practically II Experimental Learning 02
12:26
Current Electricity II Circuit Elements CBSE Class 10 II Experimental Learning 01
05:19
A person suffering from presbyopia needs bifocal lens. if he needs two lens of power, −4.0 dioptre
03:33
If a steady current of I A is passing in the both conductors, What happens to XY. Remain stationary
01:49
An electric iron of resistance 20 Ohms draws a current of 5 A. The heat developed in the iron in 30
06:44
Two wires A and B of same material, having same lengths and diameters, 0.2 mm and 0.3 mm respectivel
05:21
Consider the following combination of resistors
07:48
What dispersion of white light ? state Its cause. Draw a diagram to show dispersion of a beam of whi
04:35
A uniform magnetic field exists in a plane of paper as shown in the diagram. in this field, an elect
03:39
Earth wire is a safety measure in domestic circuit, justify the statement explaining it's role in ac
06:14
An electric source can supply a charge of 750 coloumb If the current drawn by a device is 15 mA, fin
08:49
Draw a schematic diagram of a circuit consisting of a battery of four 1.5 V cells, a 5 Ohm resistor,
06:08
The potential difference across the two ends of a circuit component is decreased to 1/3 of its initi
15:46
A copper wire has a diameter of 0.2 mm and resistance of 1.6 × 10−8 Ohm metre. What will be the leng
07:47
Name the defect of vision depicted in this diagram stating the part of eye responsible for this cond
X
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