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............. rays produce heating effec...

............. rays produce heating effect on being absorbed by material objects.

A

Ultraviolet

B

Infrared

C

Blue

D

Red

Text Solution

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The correct Answer is:
To solve the question regarding which rays produce a heating effect when absorbed by material objects, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Question**: The question states that certain rays produce a heating effect when absorbed by materials. We need to identify which type of rays this refers to from the given options. 2. **Analyze the Options**: The options provided are: - Ultraviolet - Infrared - Blue - Red 3. **Consider Wavelengths**: - Rays with longer wavelengths tend to produce more significant heating effects when absorbed by materials. This is because longer wavelengths can excite the electrons in the material, leading to an increase in thermal energy (heat). 4. **Identify the Rays**: - **Ultraviolet Rays**: These have shorter wavelengths and can cause chemical reactions (like sunburn) but are not primarily known for heating. - **Infrared Rays**: These have longer wavelengths and are well-known for their heating effects. Infrared radiation is what we commonly associate with heat, as it warms objects when absorbed. - **Blue Rays**: These have even shorter wavelengths than ultraviolet rays and are not associated with heating. - **Red Rays**: While red light has a longer wavelength than blue or ultraviolet, it is still not as effective as infrared in producing a heating effect. 5. **Conclusion**: Based on the analysis, infrared rays have the longest wavelength among the options and are specifically known for their heating effect when absorbed by materials. Therefore, the correct answer to fill in the blank is "infrared". ### Final Answer: Infrared rays produce heating effect on being absorbed by material objects.
To solve the question regarding which rays produce a heating effect when absorbed by material objects, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Question**: The question states that certain rays produce a heating effect when absorbed by materials. We need to identify which type of rays this refers to from the given options. 2. **Analyze the Options**: The options provided are: - Ultraviolet ...
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Heating Effect in Current Electricity

The existence of negatively charged particle in an atom was shown by J.J. Thomson as a result of the studies of the passage of electricity through gases at extremely low pressure known as discharge tube experiments. When a high voltage of the order of 10,000 volts or more was impressed across the electrodes, some sort of invisible rays moved from the negative electrode to the positive electrode these rays are called as cathode rays. Cathode rays travel in straight path in absence of electrical and magnetic field . Cathode rays consist of material part and charged particles? Cathode rays produce X-rays and light is emitted when they strike on ZnS screen. Cathode rays penetrate through thin sheets of aluminium and other metals . They affect the photogenic plate and passes heating effect when they strike on metal foil. The raito of charge to mass i.e charge/mass is same for all the cathode rays irrespective of the gas used in the tube. The existence of positively charged particle in an atom was shown be E. Goldstein. He repeated the same discharge tube experiments by using a perforated cathode. It was observed that when a high potential difference was applied between the electrodes, not only cathode rays were produced but also a new type of rays were produced simultaneoulsy from anode moving towards cathode and passes through the holes or canal of the cathode. These termed as canal rays or anode rays. These rays travel in straight lines and consists of positively charged particles. These rays have kinetic energy and produces heating effect also. The e/m ratio of these rays is smaller than that of electrons. Unlike cathode rays, their e/m value is dependent upon the nature of the gas taken in the tube. These rays produced flashes of light on ZnS screen and can pass throughs thin metal foils. They can produce physical and chemical changes and are capable to produce ionisation in gases. Which is not true with respect to cathode rays?

The existence of negatively charged particle in an atom was shown by J.J. Thomson as a result of the studies of the passage of electricity through gases at extremely low pressure known as discharge tube experiments. When a high voltage of the order of 10,000 volts or more was impressed across the electrodes, some sort of invisible rays moved from the negative electrode to the positive electrode these rays are called as cathode rays. Cathode rays travel in straight path in absence of electrical and magnetic field . Cathode rays consist of material part and charged particles? Cathode rays produce X-rays and light is emitted when they strike on ZnS screen. Cathode rays penetrate through thin sheets of aluminium and other metals . They affect the photogenic plate and passes heating effect when they strike on metal foil. The raito of charge to mass i.e charge/mass is same for all the cathode rays irrespective of the gas used in the tube. The existence of positively charged particle in an atom was shown be E. Goldstein. He repeated the same discharge tube experiments by using a perforated cathode. It was observed that when a high potential difference was applied between the electrodes, not only cathode rays were produced but also a new type of rays were produced simultaneoulsy from anode moving towards cathode and passes through the holes or canal of the cathode. These termed as canal rays or anode rays. These rays travel in straight lines and consists of positively charged particles. These rays have kinetic energy and produces heating effect also. The e/m ratio of these rays is smaller than that of electrons. Unlike cathode rays, their e/m value is dependent upon the nature of the gas taken in the tube. These rays produced flashes of light on ZnS screen and can pass throughs thin metal foils. They can produce physical and chemical changes and are capable to produce ionisation in gases. For cathode rays the value of e/m: