Malleable: Malleable means elements when beaten turn into thin sheets called malleable. For example, gold has a maximum tendency of being malleable. Ductile: Elements having a tendency that they can be drawn into thin wires the tendency is called ductile. For example, gold has a maximum tendency ofRead more
Malleable: Malleable means elements when beaten turn into thin sheets called malleable. For example, gold has a maximum tendency of being malleable.
Ductile: Elements having a tendency that they can be drawn into thin wires the tendency is called ductile. For example, gold has a maximum tendency of ductility.
(i) Mercury is the metal which is liquid at room temperature. (ii) Sodium & Potassium are the metals that can be cut with a knife. (iii) Silver is the metal which is the best conductor of heat. (iv) Lead and Mercury are the metal that are poor conductors of heat.
(i) Mercury is the metal which is liquid at room temperature.
(ii) Sodium & Potassium are the metals that can be cut with a knife.
(iii) Silver is the metal which is the best conductor of heat.
(iv) Lead and Mercury are the metal that are poor conductors of heat.
Explain the meanings of malleable and ductile.
Malleable: Malleable means elements when beaten turn into thin sheets called malleable. For example, gold has a maximum tendency of being malleable. Ductile: Elements having a tendency that they can be drawn into thin wires the tendency is called ductile. For example, gold has a maximum tendency ofRead more
Malleable: Malleable means elements when beaten turn into thin sheets called malleable. For example, gold has a maximum tendency of being malleable.
Ductile: Elements having a tendency that they can be drawn into thin wires the tendency is called ductile. For example, gold has a maximum tendency of ductility.
Give an example of a metal which
(i) Mercury is the metal which is liquid at room temperature. (ii) Sodium & Potassium are the metals that can be cut with a knife. (iii) Silver is the metal which is the best conductor of heat. (iv) Lead and Mercury are the metal that are poor conductors of heat.
(i) Mercury is the metal which is liquid at room temperature.
(ii) Sodium & Potassium are the metals that can be cut with a knife.
(iii) Silver is the metal which is the best conductor of heat.
(iv) Lead and Mercury are the metal that are poor conductors of heat.
The human eye can focus on objects at different distances by adjusting the focal length of the eye lens. This is due to
(b) The property of the eye to adjust the focal length of eye lens is called accommodation.
(b) The property of the eye to adjust the focal length of eye lens is called accommodation.
See lessThe human eye forms the image of an object at its
(d) retina
(d) retina
See lessThe least distance of distinct vision for a young adult with normal vision is
(c) The least distance of distinct vision for a young adult with normal vision is 25 cm.
(c) The least distance of distinct vision for a young adult with normal vision is 25 cm.
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