List - I | List – II | ||
A. | Chondrichthyes | i. | Clarias |
B. | Cyclostomata | ii. | Carcharodon |
C. | Osteichthyes | iii. | Myxine |
D. | Amphibia | iv. | Ichthyophis |
A. Chondrichthyes: Cartilaginous fishes, such as sharks (e.g., Carcharodon). A-II
B. Cyclostomata: Jawless fishes, such as hagfish (e.g., Myxine). B-III
C. Osteichthyes: Bony fishes, such as catfish (e.g., Clarias). C-I
D. Amphibia: Amphibians, such as caecilians (e.g., Ichthyophis). D-IV
Consider a water tank shown in the figure. It has one wall at \(x = L\) and can be taken to be very wide in the z direction. When filled with a liquid of surface tension \(S\) and density \( \rho \), the liquid surface makes angle \( \theta_0 \) (\( \theta_0 < < 1 \)) with the x-axis at \(x = L\). If \(y(x)\) is the height of the surface then the equation for \(y(x)\) is: (take \(g\) as the acceleration due to gravity)
A constant voltage of 50 V is maintained between the points A and B of the circuit shown in the figure. The current through the branch CD of the circuit is :