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Anusha Rashid Badal

Asked: 3 years agoIn: Physics

The diameter and height of a cylinder are measured by a meter scale to be 12.6 ± 0.1 cm and 34.2 ± 0.1 cm, respectively. What will be the value of its volume in appropriate significant figures?
1. 4300 ± 80 cm³
2. 4260 ± 80 cm³
3. 4264.4 ± 81.0 cm³
4. 4264 ± 81 cm³

Amrita Usman Agate

Asked: 3 years agoIn: Physics

During the phenomenon of aphelion, the approximate distance between the earth and the sun is:
1. 137 million km
2. 147 million km
3. 142 million km
4. 152 million km

Rosey Seshadri

Asked: 3 years agoIn: Physics

Which of the following rules is used to determine the direction of induced current in a generator?
1. Fleming’s left hand rule
2. Fleming’s right hand rule
3. Maxwell’s cork screw rule
4. Ampere’s swimming rule
5. None of the above

Pranab Hari Dhar

Asked: 3 years agoIn: Physics

A travelling harmonic wave is represented by the equation y(x, t) = 10^-3 sin (50t + 2x), where ‘x’ and ‘y’ are in metre and ‘t’ is in second. Which of the following is a correct statement about the wave?
1. The wave is propagating along the negative X-axis with speed 25 m/s.
2. The wave is propagating along the positive X-axis with speed 25 m/s.
3. The wave is propagating along the positive X-axis with speed 100 m/s.
4. The wave is propagating along the negative X-axis with speed 100 m/s.

Jack Nayar

Asked: 3 years agoIn: Physics

A satellite of mass M is in a circular orbit of radius “R” about the centre of the earth. A meteorite of the same mass falling towards the earth collides with the satellite completely in-elastically. The speeds of the satellite and the meteorite are the same just before the collision. The subsequent motion of the combined body will be
1. In the same circular orbit of radius R
2. In an elliptical orbit
3. Such that it escapes to infinity
4. In a circular orbit of a different radius

Subhash Prasad Pandit

Asked: 3 years agoIn: Physics

(A) प्राकृतिक स्पेक्ट्म
(B) कृत्रिम स्पेक्ट्म
(C) कृत्रिम स्पेक्ट्म और प्राकृतिक स्पेक्ट्म
(D) सभी कथन सत्य है

Megha Kara

Asked: 3 years agoIn: Physics

Soft X-rays have wavelength and hard X-rays have wavelength.
1. high, low
2. high, high
3. low, low
4. low, high

Peter Lal Padmanabhan

Asked: 3 years agoIn: Physics

The quantisation of charge was first suggested by ________________
1. Michael Faraday
2. Sir Issac Newton
3. Rutherford
4. Max Planck

Hira Khatri

Asked: 3 years agoIn: Physics

A Ruby is a crystal of ____.
1. CuSO₄
2. AIO₂
3. AI₂O₃
4. FeO

Usman Lal Nazareth

Asked: 3 years agoIn: Physics

A laser produces intense, monochromatic, coherent light by which of the following process?
1. stimulated absorption
2. stimulated emission
3. bremsstrahlung
4. spontaneous emission

Load More Questions

The diameter and height of a cylinder are measured by a meter scale to be 12.6 ± 0.1 cm and 34.2 ± 0.1 cm, respectively. What will be the value of its volume in appropriate significant figures?
1. 4300 ± 80 cm³
2. 4260 ± 80 cm³
3. 4264.4 ± 81.0 cm³
4. 4264 ± 81 cm³

During the phenomenon of aphelion, the approximate distance between the earth and the sun is:
1. 137 million km
2. 147 million km
3. 142 million km
4. 152 million km

Which of the following rules is used to determine the direction of induced current in a generator?
1. Fleming’s left hand rule
2. Fleming’s right hand rule
3. Maxwell’s cork screw rule
4. Ampere’s swimming rule
5. None of the above

(A) प्राकृतिक स्पेक्ट्म
(B) कृत्रिम स्पेक्ट्म
(C) कृत्रिम स्पेक्ट्म और प्राकृतिक स्पेक्ट्म
(D) सभी कथन सत्य है

(A) प्राकृतिक स्पेक्ट्म

(B) कृत्रिम स्पेक्ट्म

(C) कृत्रिम स्पेक्ट्म और प्राकृतिक स्पेक्ट्म

(D) सभी कथन सत्य है

Soft X-rays have wavelength and hard X-rays have wavelength.
1. high, low
2. high, high
3. low, low
4. low, high

The quantisation of charge was first suggested by ________________
1. Michael Faraday
2. Sir Issac Newton
3. Rutherford
4. Max Planck

A Ruby is a crystal of ____.
1. CuSO₄
2. AIO₂
3. AI₂O₃
4. FeO

A laser produces intense, monochromatic, coherent light by which of the following process?
1. stimulated absorption
2. stimulated emission
3. bremsstrahlung
4. spontaneous emission

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(A) प्राकृतिक स्पेक्ट्म

(B) कृत्रिम स्पेक्ट्म

(C) कृत्रिम स्पेक्ट्म और प्राकृतिक स्पेक्ट्म

(D) सभी कथन सत्य है