Frank ICSE Solutions for Class 9 Physics - Electricity and Magnetism: Static Electricity PAGE NO: 300 Solution 1: Electrostatics is defined as the study of charges at rest.Solution 2: Frictional electricity is also known as static electricity.Solution 3: Thales of Miletus was the scientist who observed the electric properties of amber.Solution 4: There are two … [Read more...] about Frank ICSE Solutions for Class 9 Physics – Electricity and Magnetism: Static Electricity
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Frank ICSE Solutions for Class 9 Physics – Sound
Frank ICSE Solutions for Class 9 Physics - Sound PAGE NO: 286 Solution 1: Yes, we can hear in the dark room.Solution 2: Sound is produced by the vibrating objects.Solution 3: Yes, sound is a form of energy.Solution 4: No, sound cannot travel through vacuum. It needs a material medium to travel.Solution 5: Yes, sound requires a material medium for … [Read more...] about Frank ICSE Solutions for Class 9 Physics – Sound
Frank ICSE Solutions for Class 9 Physics – Sound: Range of Hearing
Frank ICSE Solutions for Class 9 Physics - Sound: Range of Hearing PAGE NO: 284 Solution 1: The frequency of sound is defined as the number of vibrations produced by the sound producing object per second.Solution 2: S.I unit of frequency is hertz.Solution 3: One hertz is defined as one vibration produced in one second by sound producing object.Solution 4: The … [Read more...] about Frank ICSE Solutions for Class 9 Physics – Sound: Range of Hearing
Frank ICSE Solutions for Class 9 Physics – Sound: Production and Propagation of Sound
Frank ICSE Solutions for Class 9 Physics - Sound: Production and Propagation of Sound PAGE NO: 278 Solution 1: Yes, Sound is form of energy.Solution 2: Sound is produced by the vibrating objects.Solution 3: No, sound cannot travel through vacuum.Solution 4: Yes, sound can propagate through solids and liquids.Solution 5: No, sound cannot be produced in … [Read more...] about Frank ICSE Solutions for Class 9 Physics – Sound: Production and Propagation of Sound
Frank ICSE Solutions for Class 9 Physics – Light
Frank ICSE Solutions for Class 9 Physics - Light PAGE NO: 261 Solution 1: Convex mirror has a wider field of view.Solution 2: Convex mirror always produces an erect image of the object.Solution 3: Convex mirror is used in vehicles to see the traffic on rear side.Solution 4: We will use convex mirror to see an enlarged image of our face.Solution 5: Image … [Read more...] about Frank ICSE Solutions for Class 9 Physics – Light