155759
Pick out the longest wavelength from the following types of radiations
1 blue light
2 gamma rays
3 $\mathrm{X}$ - rays
4 red light
Explanation:
D The wavelength of gamma rays is less than $0.5 \times 10^{-10} \mathrm{~m}$ while the range of red light is from $0.4 \times$ $10^{-6}$ to $0.8 \times 10^{-8} \mathrm{~m}$. So according to given options the red light have longest wavelength.
AIPMT- 1990
Electromagnetic Wave
155760
Which of the following is the longest wavelength ?
1 X-rays
2 $\gamma$-rays
3 Microwaves
4 Radio waves
Explanation:
D Radio waves have the longest wavelength with $\left(10^{-1}-10^{3} \mathrm{~m}\right)$
AIPMT- 1989
Electromagnetic Wave
155762
The condition under which a microwave oven heats up a food item containing water molecules most efficiently is
1 the frequency of the microwave must match the resonant frequency of the water molecules
2 the frequency of the microwave has no relation with natural frequency of water molecules
3 microwave are heat waves, so always produce heating
4 infra-red waves produce heating in a microwave oven
Explanation:
A In a microwave oven, the frequency of the microwaves must match the resonant frequency of water molecules. In this way the maximum heat can be transferred to food in most efficient way.
NEET- 2013
Electromagnetic Wave
155763
The decreasing order of wavelength of infrared, microwave, ultraviolet and gamma rays is
1 gamma rays, ultraviolet, infrared, microwaves
2 microwaves, gamma rays, infrared, ultraviolet
3 infrared, infrared, ultraviolet, gamma rays
4 microwave, infrared, ultraviolet, gamma rays
Explanation:
D The decreasing order of wavelength of electromagnetic spectrum is- Microwave, infrared, ultraviolet, gamma rays
155759
Pick out the longest wavelength from the following types of radiations
1 blue light
2 gamma rays
3 $\mathrm{X}$ - rays
4 red light
Explanation:
D The wavelength of gamma rays is less than $0.5 \times 10^{-10} \mathrm{~m}$ while the range of red light is from $0.4 \times$ $10^{-6}$ to $0.8 \times 10^{-8} \mathrm{~m}$. So according to given options the red light have longest wavelength.
AIPMT- 1990
Electromagnetic Wave
155760
Which of the following is the longest wavelength ?
1 X-rays
2 $\gamma$-rays
3 Microwaves
4 Radio waves
Explanation:
D Radio waves have the longest wavelength with $\left(10^{-1}-10^{3} \mathrm{~m}\right)$
AIPMT- 1989
Electromagnetic Wave
155762
The condition under which a microwave oven heats up a food item containing water molecules most efficiently is
1 the frequency of the microwave must match the resonant frequency of the water molecules
2 the frequency of the microwave has no relation with natural frequency of water molecules
3 microwave are heat waves, so always produce heating
4 infra-red waves produce heating in a microwave oven
Explanation:
A In a microwave oven, the frequency of the microwaves must match the resonant frequency of water molecules. In this way the maximum heat can be transferred to food in most efficient way.
NEET- 2013
Electromagnetic Wave
155763
The decreasing order of wavelength of infrared, microwave, ultraviolet and gamma rays is
1 gamma rays, ultraviolet, infrared, microwaves
2 microwaves, gamma rays, infrared, ultraviolet
3 infrared, infrared, ultraviolet, gamma rays
4 microwave, infrared, ultraviolet, gamma rays
Explanation:
D The decreasing order of wavelength of electromagnetic spectrum is- Microwave, infrared, ultraviolet, gamma rays
155759
Pick out the longest wavelength from the following types of radiations
1 blue light
2 gamma rays
3 $\mathrm{X}$ - rays
4 red light
Explanation:
D The wavelength of gamma rays is less than $0.5 \times 10^{-10} \mathrm{~m}$ while the range of red light is from $0.4 \times$ $10^{-6}$ to $0.8 \times 10^{-8} \mathrm{~m}$. So according to given options the red light have longest wavelength.
AIPMT- 1990
Electromagnetic Wave
155760
Which of the following is the longest wavelength ?
1 X-rays
2 $\gamma$-rays
3 Microwaves
4 Radio waves
Explanation:
D Radio waves have the longest wavelength with $\left(10^{-1}-10^{3} \mathrm{~m}\right)$
AIPMT- 1989
Electromagnetic Wave
155762
The condition under which a microwave oven heats up a food item containing water molecules most efficiently is
1 the frequency of the microwave must match the resonant frequency of the water molecules
2 the frequency of the microwave has no relation with natural frequency of water molecules
3 microwave are heat waves, so always produce heating
4 infra-red waves produce heating in a microwave oven
Explanation:
A In a microwave oven, the frequency of the microwaves must match the resonant frequency of water molecules. In this way the maximum heat can be transferred to food in most efficient way.
NEET- 2013
Electromagnetic Wave
155763
The decreasing order of wavelength of infrared, microwave, ultraviolet and gamma rays is
1 gamma rays, ultraviolet, infrared, microwaves
2 microwaves, gamma rays, infrared, ultraviolet
3 infrared, infrared, ultraviolet, gamma rays
4 microwave, infrared, ultraviolet, gamma rays
Explanation:
D The decreasing order of wavelength of electromagnetic spectrum is- Microwave, infrared, ultraviolet, gamma rays
155759
Pick out the longest wavelength from the following types of radiations
1 blue light
2 gamma rays
3 $\mathrm{X}$ - rays
4 red light
Explanation:
D The wavelength of gamma rays is less than $0.5 \times 10^{-10} \mathrm{~m}$ while the range of red light is from $0.4 \times$ $10^{-6}$ to $0.8 \times 10^{-8} \mathrm{~m}$. So according to given options the red light have longest wavelength.
AIPMT- 1990
Electromagnetic Wave
155760
Which of the following is the longest wavelength ?
1 X-rays
2 $\gamma$-rays
3 Microwaves
4 Radio waves
Explanation:
D Radio waves have the longest wavelength with $\left(10^{-1}-10^{3} \mathrm{~m}\right)$
AIPMT- 1989
Electromagnetic Wave
155762
The condition under which a microwave oven heats up a food item containing water molecules most efficiently is
1 the frequency of the microwave must match the resonant frequency of the water molecules
2 the frequency of the microwave has no relation with natural frequency of water molecules
3 microwave are heat waves, so always produce heating
4 infra-red waves produce heating in a microwave oven
Explanation:
A In a microwave oven, the frequency of the microwaves must match the resonant frequency of water molecules. In this way the maximum heat can be transferred to food in most efficient way.
NEET- 2013
Electromagnetic Wave
155763
The decreasing order of wavelength of infrared, microwave, ultraviolet and gamma rays is
1 gamma rays, ultraviolet, infrared, microwaves
2 microwaves, gamma rays, infrared, ultraviolet
3 infrared, infrared, ultraviolet, gamma rays
4 microwave, infrared, ultraviolet, gamma rays
Explanation:
D The decreasing order of wavelength of electromagnetic spectrum is- Microwave, infrared, ultraviolet, gamma rays
