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The horizontal component of earth’s magnetic field at a place is 0.2 G, whereas its total magnetic field is 0.4 G. The angle of dip at the place is
The angle of dip θ is given by: cos θ = B H/ B Where B H =0.2G (horizontal component) and B = 0.4G (total field). cosθ = 0.2/0.4 = 0.5 ⇒ θ = cos⁻¹ (0.5) = 60° Answer: (C) 60°. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-5/
The angle of dip
θ is given by:
cos
θ =
B
H/
B
Where
B
H
=0.2G (horizontal component) and
B = 0.4G (total field).
cosθ = 0.2/0.4 = 0.5 ⇒ θ = cos⁻¹
(0.5) = 60°
Answer: (C) 60°.
For more visit here:
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If the magnetizing field on a ferromagnetic material is increased, its permeability
In a ferromagnetic material, as the magnetizing field increases, the permeability (μ) initially increases due to alignment of magnetic domains. However, after a certain point (near saturation), further increase in the magnetizing field causes the permeability to decrease, as most domains are alreadyRead more
In a ferromagnetic material, as the magnetizing field increases, the permeability (μ) initially increases due to alignment of magnetic domains. However, after a certain point (near saturation), further increase in the magnetizing field causes the permeability to decrease, as most domains are already aligned.
Answer: (A) decreases.
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A resistance of 980 Ω is connected in series with a voltmeter, after which the scale division becomes 50 times larger. The resistance of voltmeter is
Let the resistance of the voltmeter be Rv . When a 980 Ω resistor is connected in series, the total resistance becomes Rv + 980 and the sensitivity (scale division) becomes 50 times larger, meaning the current is reduced to 1/50 of original. Using the current division rule: Rv/Rv + 980 = 1/50 ⇒ 50RRead more
Let the resistance of the voltmeter be Rv . When a 980 Ω resistor is connected in series, the total resistance becomes
Rv + 980 and the sensitivity (scale division) becomes 50 times larger, meaning the current is reduced to
1/50 of original.
Using the current division rule:
Rv/Rv + 980 = 1/50 ⇒ 50R
v = R
v +980 ⇒ 49R
v = 980 ⇒ R
v = 20Ω
Answer: (B) 20Ω.
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What should be kept in mind about stage entry and exit?
Proper planning of stage entry and exit ensures a professional and uninterrupted performance. Dancers should know their entry timing, maintain formation and use appropriate movements while stepping onto the stage. Exiting must be done gracefully, without turning backs to the audience unless requiredRead more
Proper planning of stage entry and exit ensures a professional and uninterrupted performance. Dancers should know their entry timing, maintain formation and use appropriate movements while stepping onto the stage. Exiting must be done gracefully, without turning backs to the audience unless required by choreography. Props and costume elements should not cause obstruction. Well-rehearsed entries and exits create a polished and seamless performance, enhancing the audience’s experience.
See lessHow do different dance forms influence stage decorations?
Different dance forms require distinct stage decorations to align with their themes. Classical dances like Bharatanatyam use temple-like backdrops, whereas folk dances such as Garba feature colorful drapes and rangoli patterns. Tribal performances include natural elements like bamboo and clay pots.Read more
Different dance forms require distinct stage decorations to align with their themes. Classical dances like Bharatanatyam use temple-like backdrops, whereas folk dances such as Garba feature colorful drapes and rangoli patterns. Tribal performances include natural elements like bamboo and clay pots. The decorations must blend with costumes, lighting and music to create an immersive experience. Proper stage design enhances the authenticity and mood of the performance, making it visually and culturally appealing.
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